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PHYSICAL SCIENCE
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Sir C.V. Raman explained the phenomenon of light scattering
in gases and liquids. He found experimentally that the frequency of scattered light by the liquids is greater than the frequency
of incident light. This is called Raman Effect.
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
2
10th Class Special- Physical Science
Physical Science.. Success Plan
Prepared by:
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fyŠæï³òßæ^ŒæG‹Ü,
^é™èlMö…yýl, QÐ]l$Ã….
4 Marks
1. Specific heat of some substances are given
here
Lead
Brass
Plint glass
Kerosene
Water
Sea water
IMPORTANT QUESTIONS
1 Mark
1. What would be the final temperature of
mixture of 50g of water at 20oC temperature and 50g of water at 40oC temperature?
A. m1 = 50g, m2=50g,
T1 = 20oC, T2=40oC
m T + m T2
=
3000
= 30o C
100
2. Explain why dogs pant during hot summer
days using the concept of evaporation?
A. Dogs do not have sweat pores on their
skin, but only at their feet. The sweat produced by evaporation would not have way
to go out. Hence it pant during hot summer days to maintain its body temperature
balance.
3. Convert 37oC into kelvin?
A. 37oC = 273+37 k
= 310 k
4. What change do you observe when water
changes from liquid to solid?
A. Water expands on freezing
5. Water vapour of mass 2 kg at 100oC was
condensed as water at 40oC. What is the
heat liberated?
A. From the given data
m = 2 kg = 2000g
∆θ = 100–60=40oC
L = 540 cal /g
S= 1 cal /goC
mL+ms∆θ
= m(L+S∆θ)
= 2000 (540+1×60)
= 2000× 600
= 1200000 cals
= 1200 k.cals
2 Marks
1. If you are chilly outside the shower stall,
why do you feel warm after the bath if you
stay in the bath room?
2. Mention the differences between evaporation and boiling?
3. What role does specific heat play in keeping a watermelon cool for a long time after
removing it from a fridge?
4. Describe an activity to show that the water
expands on freezing?
5. Explain the formation of dew with an
example?
Specific heat
(Cal/goC)
0.031
0.092
0.12
0.5
1
0.95
5. Draw the diagram showing the arrangement of apparatus for electrolysis of
water?
2.
3.
4.
5.
i) If same quantity of water and sea
water are heated for same time at same
temperature, then which one gets heated fast?
ii) In which of the above substances, the
rate of increase or decrease in temperature will be less?
iii) Why do the specific heats of different
substances will be different?
Write a report on the experiment that you
have conducted to find the specific heat of
lead using lead shots?
Give the daily life implications of specific
heat capacity?
A copper ball of mass 3 kg has been heated in a furnace and dropped in 8 kg water
at 100oC. The temperature of water was
raised by 25oC. Find the temperature of
the furnace (specific heat of copper is 0.1
cal /goC)
Three liquids A, B and C are at 30oC,
20oC and 10oC. When equal amounts of A
and B are mixed, then the resultant temperature is 26oC. Similarly when A and C
are mixed, then the resultant temperature
is 25oC, find the resultant temperature
when B and C are mixed at equal amounts.
IMPORTANT QUESTIONS
1 Mark
1. Complete the adjacent diagram.
↑
0
Plastic Mug
O2
H2
A.
Test tubes
1 1
2
Resultant temperature T = m + m
1
2
50 × 20 + 50 × 40
50 + 50
3. REFLECTION OF LIGHT
BY DIFFERENT SURFACES
2AgBr(Sun light)2Ag + Br
Substance
1. HEAT
=
A. When a light yellow coloured silver bromide is kept in sunlight, it turns into grayish silver.
Acidified water
Graphite rods
Anode
Switch
Cathode
9V Battery
2 Marks
1. Why do we consider respiration as an
exothermic reaction?
2. A shiny brown coloured element 'X' on
heating in air becomes black in colour.
Can you predict the element 'X' and the
black coloured substance formed? How do
you support your predictions?
3. Write the names of any two alloys and
write the metals present in them?
4. What do you interpret from the reaction?
2 NaOH + H2SO4 → Na2SO4+2H2O.
What type of reaction is this?
5. What is the change that you have observed
when iron nails are kept in copper sulphate
solution for some time? Write a chemical
equation for this reaction?
2. Magnification of a plane mirror is given as
1. What do you infer from this?
A. 1) Size of image and size of object are
same
2) The image is virtual.
3. Why do plane mirror suffer lateral inversion?
A. Our brain feels that the reflected rays from
a plane mirror are coming from inside the
mirror. That is why the image suffers lateral inversion.
4. Draw a ray diagram such that the image
must fall on the object by a concave mirror?
A.
o1
P
F
o
I C
I1
5. What do you mean by plane of reflection?
A. The plane consisting of incident ray,
reflected ray and the normal is known as
plane of reflection.
2. CHEMICAL REACTIONS
AND EQUATIONS
IMPORTANT QUESTIONS
1 Mark
1. Which is oxidized and which is reduced in
the following reaction
MnO2 + 4 HCl → MnCl2+2H2O+Cl2
A. MnO2 is reduced and HCl is oxidized
2. How do you test the gases that are liberated in test tubes during electrolysis of
water?
A. Bring a burning match stick to a test tube,
if it burns brightly then the gas is Oxygen
and the other one is Hydrogen. If the burning match stick will put off with a pop
sound, then the gas is Hydrogen and the
other one is Oxygen.
3. What is Rancidity?
A. Substances like oils and fats will spoil by
losing their taste and odour due to oxidation when preserved for a long time is
known as rancidity.
4. Give an example of Photo chemical reaction?
4 Marks
1. Balance the following chemical reactions
a) Pb(NO3)2+KI → PbI2+KNO3
b) AgBr → Ag+Br2
c) Pb(NO3)2 → PbO +NO2 +O2
d) C3H8+O2 → CO2+H2O
2. Explain the procedure of experiment to
observe a redox reaction.
3. Explain chemical combination, decomposition, displacement and double displacement reactions with one example each.
4. Discuss the effects of oxidation that you
have observed in your daily life.
5. The following substances are provided to
a student and asked to conduct experiments on types of chemical reactions.
What experiments that he would have
conducted?
Copper sulphate solution, Barium chloride solution, crystals of ferrous sulphate, iron nails, Quick lime and water.
2 Marks
1. Draw a ray diagram showing formation of
a virtual image through concave mirror?
2. An object is placed at a distance of 10cm
before a concave mirror of focal length 15
cm. Find the position and characteristics
of the image formed?
3. An object is placed at a distance of 10cm
Oxidation is a
reaction that involves
the addition of oxygen or
removal of hydrogen.
Reduction is a reaction that
involves the addition
of hydrogen or
removal of
oxygen.
Niels Henrik David Bohr was a Danish physicist who made
foundational contributions to understanding atomic structure
and quantum theory, for which he received the Nobel Prize in
physics in 1922. Bohr was also a philosopher and a promoter.
4 Marks
1. Draw the ray diagrams to show the position of image when object is kept at different places before a concave mirror?
2. Explain the process of finding the normal
to a curved plane?
3. Why do the reflectors in car head lights
are arranged in parabolic shape?
4. You might have heard the story of Archimedes that he burned ships using mirrors?
i) What type of mirrors he used?
ii) Which energy that he used to burn
ships?
iii) What will be the shape that he
arranged all the mirrors?
iv) Draw a ray diagram that explains the
principle involved in this?
4. ACIDS, BASES AND SALTS
IMPORTANT QUESTIONS
1 Mark
1. Give an example for neutralization reaction?
A. NaOH+HCl → NaCl+H2O
2. What is the gas liberated when an acid
reacts with a metal? How do you test that
gas?
A. The gas liberated is H2. When a burning
match stick is bought near to the H2 gas, it
puts off with a 'pop' sound.
3. Ca(OH)2+Cl2 → CaOCl2+H2O. What is
the bleaching agent in this reaction?
A. CaOCl2 (Bleaching powder)
4. Write the names and formulae of any two
chemicals obtained from common salt?
A. Sodium carbonate (Na2CO3)
Sodium Hydrogen carbonate (NaHCO3)
5. Why does not the pure water show conductivity?
A. Pure water cannot produce ions. Hence it
will not show conductivity.
2 Marks
1. While diluting an acid, we have to add
acid to water but not water to acid.
Explain?
2. What reaction will take place in our stomach when we take antacid tablet?
3. What is the role of pH in our digestive system?
4. Why do we get tooth decay? How to prevent it?
4 Marks
1. Explain the process of finding the pH of
soil in your house?
2. Explain some daily life examples on the
role of pH in our day to day life?
3. What do you mean by water of crystalliza-
tion of salts? Explain it with an activity?
4. Karthik's hand was fractured while playing. His doctor made a bandage to his
hand with a white powder, which was
hardened after some time.
i) What is that white powder? Write its
chemical formula?
ii) The powder was hardened when
mixed with water. Write a chemical
equation for this reaction?
iii) Mention some other uses of that white
powder?
5. REFRACTION OF LIGHT
AT PLANE SURFACES
IMPORTANT QUESTIONS
1 Mark
1. The refractive index of water is 1.33.
What is its critical angle?
A. n=1.33, C=3×108 m/sec
n=
c
⇒ v = nc
v
=1.33×3×108
=3.99×108 m/s
n
2
Critical angle sin c = n
1
sin C =
of refraction?
4. Observe the following table
Substance
Water
Diamond
Benzene
Plint galss
Kerosene
Refracture index
1.33
2.42
1.50
1.65
1.44
i) Which of the above substances is optically denser?
ii) Find the velocity of light in Benzene?
iii) Find the velocity of light in water with
respect to kerosene?
6. REFRACTION OF LIGHT
AT CURVED SURFACES
IMPORTANT QUESTIONS
1 Mark
1. Can we take the photograph of a virtual
image?
A. Yes, we can take the photograph of a virtual image
2. Draw the ray tracking through a concave
lens?
A.
3 × 108
= 0.7518
3.99 × 10 8
c = sin–1 (0.7518)
c = 48.5o
2. Draw the ray diagram showing the refraction of light when it travels from denser to
rarer medium?
A.
Normal
Rarer medium
3. Velocity of light in air is 3,00,000 km/sec,
and that of in diamond is 1,24,000 km/sec.
Find the refractive index of diamond?
A. Refractive index of diamond
=
Velocity of light in air
Velocity of light in Diamond
=
3,00,000
= 2.42
1, 24,000
3
10th Class Special- Physical Science
Denser medium
before a concave mirror, whose radius of
curvature is 8 cm. Find the image distance?
4. Magnification of a concave mirror is –1.
Then find
i) Position of object and position of image
ii) Characters of the image
5. An object of height 4cm is kept at a distance of 25 cm before a concave mirror,
whose focal length is 15 cm. Find the image distance and characteristics of image.
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
2 Marks
1. The critical angle of Benzene is 42o. Find
the refractive index of Benzene?
2. Draw the ray diagram showing the refraction of light through a glass slab?
3. Explain the brilliance of diamond?
4. Why stars twinkle? explain?
4 Marks
1. Explain two daily life applications of total
internal reflection?
2. Explain the formation of mirages?
3. Explain the process of experiment that
you have conducted to find the relationship between angle of incidence and angle
formed and to know the characteristics of
images, when the object is placed at different positions before a convex lens.
2. Explain the activity that you have conducted to show that the focal length of a
lens depends on adjacent medium.
3. An object is placed on the principle axis of
a convex lens of focal length 20 cm. Draw
ray diagrams to show the formation of
image in the following situations.
i) Object is placed at 50cm from the lens
ii) Object is placed at 40 cm from the lens
iii) Object is placed at 30 cm from the lens
iv) Object is placed at 10 cm from the lens
4. Complete the following table (The lens
used in convex lens)
S. Position Position
No. of object of Image
Charecteristics of image
Real/ Magni- Inverted/
Virtual fication
erect
1. Infinite
distance
2.
3.
Virtual
4.
In between
F2 and C2
–1
7. HUMAN EYE AND
COLOURFUL WORLD
IMPORTANT QUESTIONS
3. Velocity of light in two media is V1 & V2.
These two media are separated by a concave surface. Draw a ray diagram when the
light ray passing from a medium with velocity of light V1 to another medium is which the velocity of light is V2, if V1 > V2
A.
Rarer
medium (v2)
Denser
medium (v2)
C
2 Marks
1. An object is placed at a distance of 60 cm
infront of a converging lens of focal length
20 cm. find the image distance and characteristics of image formed?
2. Find the refractive index of a symmetric,
converging lens if the focal length and
radius of curvature are equal.
3. When do a convex lens acts as a diverging
lens? Give an example.
4. Lens formula is given as
1 1 1
= + . Is it
f v u
correct? Write the correct formula, if it is
not correct?
5. Complete the following ray diagram and
find the position of object.
•
•
•
•
C1
F1
F2
C2
I
I1
4 Marks
1. Draw ray diagrams to show the images
1 Mark
1. How do the rainbow appear to a person
travelling in an aeroplane?
A. Complete circle
2. Sekhar switched on the tube light at 12
mid night, but he could open his eyes
hardly. What will be the reason for this?
A. This happens due to the delay in the
adjustment of eye lens to the light
3. Which part of the eye plays a key role in
the adjustment of eye lens?
A. Ciliary muscles
4. What will be the minimum distance
between eye and an object so that one can
see the object clearly?
A. 25 cm
5. Mention any two daily life applications of
scattering of light?
A. Appearance of sky in red colour during
morning and evening and white during
noon.
2 Marks
1. Why do the sky appears blue?
2. How did you form rainbow in your class?
3. Why do sky appears white during noon
time?
4. Doctor advised to a person, suffering from
long sightedness to use a lens of focal
A
scale for measuring hydrogen ion
concentration in a solution is clled PHscale. PH
value of a solution is simply
a number which indicates the acidic or
basic nature of a
solution.
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
4
10th Class Special- Physical Science
length 100cm. Find the least of distance of
distinct vision and power of lens.
4 Marks
1. Explain the process of experiment that
you have conducted to find the refractive
index of prism?
2. If you want to know about the most common defects of vision and the remedies to
control the defects, whom do you consult?
What are the questions do you ask?
Prepare a model table to record the information that you have collected?
3. Some aged people will suffer while reading or writing due to their defect in vision
i) Which lens do you suggest to them?
ii) If that person can see only nearer
objects and cannot see far objects,
show diagrammatically the defect and
correction?
4. Explain the process of formation of rain
bow?
5. Draw ray diagrams to show the hypermetropia and its correction?
8. STRUCTURE OF ATOM
But Swathi corrected it
i) Which rule did Swathi used to correct
it? Write that rule?
ii) Write the correct configuration?
iii) Write the name of that element?
2. Mention Bohr's postulates based on
Hydrogen spectrum?
3. The quantum numbers of a differentiating
electron of an atom are
n
3
l
2
ml ms
O +1/2
i) What is the outermost shell of this element?
ii) Write the electronic configuration of
this element?
iii) What is the valency of this element?
iv) Write the name and atomic number of
this element?
4. Discuss the reasons why Sommerfeld
introduced elliptical orbits?
IMPORTANT QUESTIONS
IMPORTANT QUESTIONS
1 Mark
1. Write the Mendeleeff’s periodic law?
A. The physical and chemical properties of
elements are a periodic function of their
atomic weights.
2. What is valency?
A. Valency of an element was defined as the
combining power of an element with
respect to hydrogen.
3. Write the units of ionization energy?
A. ev (or) Kcal / mole (or) KJ/mole
4. Write the formula proposed by Milliken to
measure electro negativity.
4 Marks
1. The electronic configuration of an atom
has been written by Anil as follows.
1s
2s
2px 2py 2pz
i) Very stable
ii) In group 2 of the periodic table
iii) In group 16 of the periodic table
iv) Highest electro negative?
5. a) What is a group in a periodic table? In
which part of the group would you separately expect the elements to have
i) Highest metallic character?
ii) The largest atomic size?
b) What are the advantages of the periodic table?
10. CHEMICAL BONDING
9. CLASSIFICATION OF
ELEMENTS
THE PERIODIC TABLE
1 Mark
1. What do you mean by nlx method?
A. In nlx method, n represents principal quantum number (shell number), l represents
angular momentum quantum number
(orbital) and x represents the number of
electrons in the orbital
2. Write the four quantum numbers of the
differentiating electron in Sodium?
A. The differentiating electron is 3S1.
n = 3, l = 0, ml = 0, ms = + 1/2
3. The spin quantum number of an electron
of an atom is –1/2. What do you mean by
this?
A. The spin of that electron is in anti clock
wise direction.
4. What is the velocity of visible light in
space?
A. 3×108 m/sec
2 Marks
1. Draw the shape of electromagnetic spectrum?
2. "Emission or absorption of light spectrum
is a collection of a group of wave lengths".
Discuss this statement with the help of
Planck's theory?
3. Write a notes on principal quantum number?
4. Draw the boundary pictures of 'S' and 'P'
orbitals?
5. The wave length of a radio wave is 1m.
Find its frequency.
6. What is an orbital? How is it different
from Bohr's orbit?
Hans Christian Oersted was one of the leading scientist of the
19th century, played a crucial role in understanding electromagnetism.
The unit of magnetic field strength is named Oersted in his honour.
Oersted was made a foreign member of the Royal Swedish Academy
of Sciences in 1822.
A. E.N = I.E + E.A
2
2 Marks
1. In Na and Na+, which has lowest atomic
radius? Why?
2. Which group of elements are called halogen family? Why?
3. Write the following properties of an element with atomic number 12
i) Period number
ii) Valence
iii) Group number
iv) Family of elements
4 Marks
1. Among the elements Cu, Zn, Ga, Ge, As
i) Which element has highest atomic
radius?
ii) Which element has highest electro
negativity?
iii) Which element belongs to d-block?
iv) For which element the metallic nature
is more?
2. Discuss the position of Hydrogen in modern periodic table?
3. Define modern periodic law? Discuss the
construction of Long form periodic table?
3. Consider the following elements.
20Ca, 8O, 18Ar, 16S, 4Be, 2He.
Which of the above elements would you
expect to be
IMPORTANT QUESTIONS
1 Mark
1. Which defect of VSEPRT has been explained by valence bond theory?
A. Bond energy
2. Draw the shape of NH3 and write its bond
angle?
A.
N
H
H H
ic number 6, 11 and 17 respectively.
i) Which of these cannot form ionic
bond? Why?
ii) Which of these cannot form covalent
bond? Why?
iii) Which of these can form ionic as well
as covalent bond?
4. Show the following with Lewis dot structure
i) Bromine gas
ii) Calcium Chloride
iii) Carbon dioxide
iv) Which molecule has a double bond in
the above three?
5. Explain the formation of N2, based on
valence bond theory?
11. ELECTRIC CURRENT
IMPORTANT QUESTIONS
1 Mark
1. Let the resistance of our body is 100kΩ. If
you touch a live wire of 240v, what is the
amount of flow of current through your
body?
v
240
A. I = R ⇒ 100000 = 0.0024A
2. After completing the experiment to find
the relation between V and I, Sekhar plotted a graph between the values of V and I.
The shape of the graph is as follows what
type of conductor has he taken?
A. The wire taken by sekhar must be a semiconductor Y
The N–H bond angle is 107o 481.
3. Represent H2O with Lewis dot structure?
A.
O
H
H
4. What is Hybridization?
A. Hybridization is a phenomenon of intermixing of atomic orbitals of almost equal
energy which are present in the outer
shells of the atom and their reshuffling or
redistribution into the same number of
orbitals but with equal properties.
5. Write the electronic configuration of Be in
its excited state?
A. 1S2 2S1 2P1x
I
↑
X
→V
3. A wire of uniform cross section where
resistance is 50Ω has cut into 5 equal parts
and connected them in parallel. What is
the equivalent resistance of the combination?
A. If the wire of 50Ω resistance has cut into 5
equal parts, the resistance of each part is
10Ω when they are connected is parallel.
1
5
=
R eq R
R eq =
R
10
⇒
= 2Ω
5
5
4. Correct the adjacent circuit
A
2 Marks
1. Draw a diagram to show that the formation of covalent bond by overlapping porbital of an element with S–orbital of
another element?
2. Why do valence electrons involve in bond
formation? Why not inner shell electrons?
3. Explain the formation of BeCl2 by
Hybridization?
4. Which factors decide the type of bond
formed between two atoms?
4 Marks
1. Explain the formation of NaCl and MgCl2
molecules?
2. Write the differences between ionic and
covalent substances?
3. A, B and C are three elements with atom-
V
When light
travels from one
medium to another, its
direction changes at the
interface. The phenomenon
of changing direction
at the interface of
the two media is
known as
refraction.
Max Karl Ernst Ludwig Plank was a German theoretical physicist who
originated quantum theory, which won him the Nobel Prize in Physics in
1918. Plank made many contributions to theoretical physics, but his fame
rests primarily on his role an originator of the quantum theory? This theory revolutionized human understanding of atomic and subatomic processes.
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
V
A.
•
A
5. What is emf?
A. emf can be defined as the work done by
the chemical force to move unit positive
charge from negative terminal to the positive terminal of the battery.
A. Magnetic lines of force are in anticlock
wise direction. Hence the current is in
upward direction. i.e. outside perpendicular to the page.
2. The figure shows the direction of flow of
current through a coil. Which pole will be
induced on the upper part of the coil?
2 Marks
1. What is the equivalent resistance between
A and B?
R
R
R
A
R
B
R
2. Why do we use lead wire as a fuse wire?
3. A bulb is rated as 60w, 220v, and another
bulb is rated as 100w, 220 v. Which bulb
has more resistance?
4. The resistance of a conductor of length 1m
and cross sectional area 0.1 mm is 100Ω,
calculate its resistivity?
5. All conductors are not ohmic conductors.
Justify your answer?
4 Marks
1. Write the procedure of the experiment that
you have conducted to prove the ratio
between potential difference and current?
2. Consider the following circuit
3Ω
6Ω
5Ω
8Ω
R3
R4
5Ω
R1
R2
9Ω
9Ω
R7
R5
R6
A. North pole.
3. The magnetic field induction a uniform
magnetic field is 2T. Find the magnetic
flux passing through a plane of area.
1.5m2 which is perpendicular to the plane?
A. B=2T, A = 1.5 m2
Magnetic flux φ = BA
= 2T ×1.5 m2 ⇒ 3wb
4. What are the uses of drawing magnetic
lines of force?
A. We can find
i) effect of magnetic field
ii) direction of magnetic field
5. What are the characteristics of AC current?
A. i) AC current changes its direction frequently
ii)AC current consists fixed frequency.
2 Marks
1. A coil is kept perpendicular to the page at
P, current flows into the page at Q. It
comes out of the page as shown in the figure. What is the direction of magnetic
field due to the coil?
•
Q
X
P
12v
i) What is the equivalent resistance of
R3, R4, R5 and R6?
ii) If R1 R2 and R7 are 0Ω each, then
what is the current through the
remaining combination of resistors?
iii) If an ammeter is connected in the circuit, what will be its reading?
iv) What will be the current in the circuit
if R3, R4, R5 and R6 are 0Ω each.
3. Your friend requires 10Ω resistance. He
asked you. But you have the resistors of
40Ω only.
i) How many resistors can you give to
your friend?
ii) How could he connect them?
iii) Show that their equivalent resistance
is 10Ω?
4. Describe an activity to show that the
resistance of a conductor depends on its
length?
12. ELECTROMAGNETISM
IMPORTANT QUESTIONS
1 Mark
1. Magnetic lines around a conductor carrying current are shown in the diagram.
What is direction of flow of current?
5
10th Class Special- Physical Science
2. The magnetic flux through a closed plane
taken in a magnetic field is zero. How do
you justify this?
3. Explain why the image in T.V. distorts
when a magnet is brought near to the T.V.
Screen?
4. Mention any two daily life applications of
Faraday's laws of electromagnetic induction?
5. Kiran studied the following lines in a
book. "The induced emf produce in a coil
does not depend on the resistance of the
coil". How can you say that the statement
is true?
4 Marks
1. Compare the lines of force formed by a
magnet and a solenoid through diagram
and explain?
2. Let a particle of charge 'q' moving with a
velocity V, perpendicular to a field of
induction B. Find path of the charge,
radius and time period?
3. Explain the working of electric motor with
a neat diagram?
4. Find the force acting on a wire carrying
current kept in a magnetic field?
5. Describe an experiment conducted by
Faraday to show that a current is generated in the coil which is linked a magnetic
flux in continuous motion?
13. PRINCIPLES OF
METALLURGY
A. Vinegar
4. What is the process of esterification reaction?
A. Take 1 ml ethanol and 1 ml glacial acetic
acid along with a few drops of conc
H2SO4 in a test tube and heat it in a water
bath. Add this to another beaker containing hot water. The resulting mixture gives
a sweet smell. This is ester.
IMPORTANT QUESTIONS
1 Mark
1. What are the main processes in refining?
A. Distillation, poling, liquation, electrolytic
refining.
2. What are the different stages in extraction
of a metal from its ore?
A. Concentration of ore, extraction of crude
metal from the ore, purification of the
crude metal.
3. What is the flux used to remove the impurity such as SiO2?
A. SiO2 is an acidic nature substance. We
have to use a basic nature substance like
CaO to remove it.
4. What is smelting?
A. Smelting is a pyrochemical process, in
which the ore is mixed with flux and fuel
and strongly heated.
2 Marks
1. Write the IUPAC name of
0
i) CH3 _ C_ CH2 _ CH2 _ CH2 _ CH2 _ CH2 _ OH
H
__
ii) H2C= C
C __ C = CH2
Br
2 Marks
1. Explain a method of concentration of a
sulphide ore?
2. Compare roasting and calcination?
3. Aluminium can be extracted from a lot of
minerals but we use bauxite only as its
ore. Explain with reasons?
4. Write the reactions taking place in Blast
furnace?
5. Write a description of self reduction of
sulphide ores?
4 Marks
1. Explain the process of experiment, to
obtain zinc by electrolysis?
2. Draw a flow chart showing the different
stages involved in extraction of a metal
form its ore?
3. What is thermite process? Mention any
two applications of this process in our
daily life?
4. Describe an activity to show that the corrosion of metal requires moisture and air?
5. Draw a neat diagram of reverbaratory furnace and label it.
14. CARBON AND ITS
COMPOUNDS
CH2
H2
CH3
2. Explain micelle with a diagram?
3. Why do we burn Ethyne and Oxygen for
welding, but not Ethyne and air? Explain?
4. Explain how graphite is used for writing
on paper?
5. Why diamond is considered as hardest of
all known substances?
4 Marks
1. Write the structural formula for the following compounds.
i) 2- Bromo pentane
ii) 2-Methyl propane
iii) Butanol
iv) 1- Hexyne
2. Explain the importance of esters in daily
life?
3. Describe the cleansing action of soap with
a neat diagram?
4. Write the IUPAC names of the following
compounds
i) An aldehyde formed from Ethane.
ii) A ketone obtained from butane.
iii) A chloride formed from propane.
iv) An alcohol formed from pentane.
5. Explain the substitution reaction with an
example?
IMPORTANT QUESTIONS
1 Mark
1. What is the acid present in vinegar?
A. Acetic acid or Ethanoic acid.
2. What is name of the compound formed
when Ethanol is heated at 443K in the
presence of conc. H2SO4? Write the equation?
A. Ethane.
CH 3CH 2OH
443K
CH 2 = CH 2 + H 2O
Conc.H 2SO 4
3. Which carboxylic acid is used as preservator?
The arrangement of electrons in
shells, sub-shells and
orbitals in an atom is
called the electron configuration.
6
Wohler Friedrich.. German chemist who was a student of Berzelius.
In attempting to prepare ammonium cyanate from silver cyanide and
ammonium chloride, he accidentally synthesized urea in 1828. This
was the first organic synthesis, and shattered the vitalism theory.
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
10th Class Special- Physical Science
1. HEAT
1. Why do solids expands on heating?
a) kinetic energy of atoms increases
b) potential energy of atoms increases
c) total energy of atoms increases
d) inter molecular distance increases
2. 2kg of water vapour at 1000C has condensed as water at 400C. What is the
amount of heat released?
b)1200 K.cal
a) 600 K.cal
d) 120 K.cal
c) 60 K.cal l
3. Why do we use water in radiators of vehicles to cool them?
a) specific heat capacity of water is more
b) density of water is less
c) water is abundantly available
d) the temperature of water is very less
4. If an ice block at 00C is dropped in the
water at 00C, then..?
a) water also condenses
b) ice block completely melts
c) some part of ice block melts
d) no change is observed
5. If water which is at room temperature is
poured in a hole of an ice block, then?
a) water changes as ice
b) the temperature of water becomes 00C
c) water will not condense
d) b and c
6. The objects A, B and C are in thermal
equilibrium. The temperature of A is 600C.
Then the temperature of C is?
a) 300C b) 450C c) 600C d) 00C
7. The temperature of a steel rod is 345k. Its
temperature in 0C is?
a) 720C b) 450C c) 6180C a) 700C
8. Which of the following is a warming
process?
a) evaporation
b) boiling
c) specific heat
d) dew formation
9. Sweating is a process of?
a) Condensation
b) Cooling
c) Evaporation
d) Boiling
10. Latent heat of fusion of ice is?
a) 540 Cal/gm
b) 80 Cal/gm
c) 100 Cal/gm
d) 180 Cal/gm
ANSWERS:
1) d; 2) b; 3) a; 4) d; 5) d;
6) c; 7) a; 8) b; 9) c; 10) b
2. CHEMICAL REACTIONS
AND EQUATIONS
1. A gas is evolved when Calcium carbonate
is heated. This gas puts off a burning
match stick. This gas is?
a) Carbondioxide
b) Hydrogen
c) Oxygen
d) Nitrogen dioxide
2. C+O2→CO2+Q. This is an example of
___ reaction?
a) Endothermic reaction
b) Photochemical reaction
c) Exothermic reaction
d) Electrochemical reaction
3. Which of the following is an example of
chemical double displacement?
a) 2AgCl→2Ag+Cl2
b) 2Pb(NO3)2→2PbO+4NO2+O2
c) Zn+2AgNO3→Zn(NO3)2+2Ag
d) Na2SO4+BaCl2→BaSo4+2NaCl
4. Copper powder which is shining in red
colour changes into black copper oxide.
This reaction is?
a) Oxidation
b) Reduction
c) Photo chemical reaction
d) Electro chemical reaction.
5. 2PbO+C→2Pb+CO2. Which of the following is correct, based on the equation?
a) Led is reduced
b) CO2 is oxidised
c) Carbon is oxidised
d) Led oxide is oxidised
6. If Iron dust is added to diluted HCl, then?
a) Iron chloride is formed and H2 gas is
liberated
b) Iron oxide is formed and chlorine gas is
liberated
c) No reaction takes place
d) Iron salt and water are formed
7. Number of atoms in 2 grams of Hydrogen
are
b) 3.01×1023
a) 6.02×1023
c) 12.04×1023
d) 6.02×10−23
8. AgNO3+NaCl→NaNO3+AgCl↓. This is
an example for ____ reaction
a) Gas is evolved
b) Exothermic reaction
c) Endothermic reaction
d) Precipitation is formed
9. Which of the following is a balanced
equation?
a) C3H8+O2→CO2 +H2O
b) Fe2O3+2Al→2Fe +Al2O3
c) Na+H2O→NaOH +H2↑
d) Zn+AgNO3→Zn(NO3)2+Ag
10. Which of the following gas is used as a
bleaching agent?
b) H2
c) CO2
d) Cl2
a) O2
ANSWERS:
1) a; 2) c; 3) d; 4) a; 5) a;
6) a; 7) a; 8) d; 9) b; 10) d
3. REFLECTION OF LIGHT
BY DIFFERENT SURFACES
1. A concave mirror, a screen and an object
are arranged such that the height of image
is double that of the object. Then the
screen and object are moved to get a the
triple magnified image. In this case the
screen is moved by 25cm. Find the focal
length of the mirror?
a) 5cm
b) 16.6cm c) 25cm d) 7.5cm
2. A concave mirror whose focal length 'f'
forms an image equal in height to the
object. Then the object distance from the
mirror is?
a) f
b) f/2
c) 2f
d) 4f
3. If the magnification is 1,then the image is?
a) equal to height of the object
b) erected image
c) a & b
d) given data is insufficient
4. The ray which is passing through focus of
a concave mirror, after reflection passes?
a) through focus
b) parallel to principal axis
c) through centre of curvature
d) through pole
5. An object is placed at a distance of 10cm
infront of a concave mirror of focal length
20 cm. Then the image is?
a) diminished, erect and virtual
6.
7.
8.
9.
10.
b) enlarged, erect and virtual
c) diminished, inverted and real
d) enlarged, inverted and real.
Which of the following letter appears as it
is in a plane mirror?
a) A
b) M
c) O
d) L
If you move an object towards your eye
from the surface of a plane mirror, then the
size of image?
a) increases
b) decreases
c) does not change d) disappears
The radius of curvature of a concave mirror is 1m. If a ray from an object at infinite
distance falls on the mirror, then the image
is formed at?
a) 0.5m b) 1m
c) 2m
d) 0.25m
Which of the following is a diverging
lens?
a) plane mirror
b) concave mirror
c) convex mirror
d) parabolic mirror
The distance between pole and centre of
curvature of a mirror is A and the distance
between pole and principle focus is B. The
relation between A and B is
a) A=2B b) B=2A c) A=B/2 d) B=3A
ANSWERS:
1) c: 2) c; 3) c; 4) b; 5) b;
6) c; 7) b; 8) a; 9) c; 10) a
4. ACIDS, BASES AND SALTS
1. A substance produced H3O+ ions in its
aqueous solution. The substance is?
a) acid
b) base
c) neutral substance
d) having both acid and basic nature.
2. The colour of methy l orange when added
to aqueous solution of sodium hydroxide
is?
a) Red
b) Pink
c) Yellow
d) No change
3. When a colourless solution is added to a
metal bicarbonate CO2 gas is evolved. The
colourless solution is?
a) base
b) Acid
c) Neutral solution d) can't say
4. Which of the following is an alkali?
a) NaOH
b) KOH
d) Be (OH)2
c) Mg(OH)2
5. The acid which is left by bee sting is?
a) Methanoic acid
b) Tartaric acid
c) Hydrochloric acid d) Citric acid
6. Which of the following is not a salt?
a) Sodium chloride b) Quick lime
c) Zinc nitrate
d) Lead phosphate
7. The aqueous solution of sodium bicarbonate?
a) changes blue litmus to red
b) changes methyl orange to yellow
c) changes phenophthalene to pink
d) changes methyl orange to red
8. The strength of acid depends on?
a) concentration of acid
b) concentration of H+
c) concentration of OH−
d) no. of moles of base used to neutralize
ions
9. The concentration of H+ ions is 10×10−4
Mole/liter. The pH of the solution is?
a) 1
b) 2
c) 3
d) 4
10. Which of the following pair gives common salt?
a) Sodium Thio sulphate, Sulphur dioxide
b) Hydrochloric acid, Sodium hydroxide
c) Chlorine and oxygen
d) Nitric acid and sodium hydrogen carbonate
ANSWERS:
1) a; 2) c; 3) b; 4) d; 5) a;
6) b; 7) b; 8) b; 9) c; 10) b
5. REFRACTION OF LIGHT
AT PLANE SURFACES
1. The coin in a beaker of water seems to be
appeared above its original place, due to?
a) refraction
b) reflection
c) rectilinear motion of light
d) dispersion of light
2. To observe total internal reflection, light
must?
a) travel from rarer medium to denser
medium
b) travel from denser medium to rarer
medium
c) travel from rarer medium to rarer medium
d) travel from denser medium to denser
medium
3. Which of the following is an application
of total internal reflection?
a) formation of mirage
b) shining of a diamond
c) twinkling of stars d) all the above
4. The distance between the incident ray and
emerging ray, when light travels from a
glass slab is called?
a) Parallel shift
b) Lateral shift
c) Vertical shift
d) Refractive index
5. Refractive index does not depend on?
a) nature of substance
b) wave length
c) density of substance
d) none of the above
6. 'The refractive index of a medium is not
uniform through out the medium' The best
example which supports the statement is?
a) shining of a diamond
b) twinkling of the stars
c) mirage formation
d) formation of rainbow
7. Which of the following is not Snell's law?
sin i n 2
=
b)
a) n1sin i=n2sin r
sin r n 1
c)
sin i n 1
sin i
=
= constant d)
sin r n 2
sin r
8. ____ gives us an idea of how fast or how
slow light travels in a medium.
a) critical angle
b) refractive index
c) density
d) shift
Modern
periodic law:
The physical and
chemical properties of
the elements are the
periodic functions
of their Atomic
configurations.
Linus Pauling.. The world's one of the greatest scientists and a
great humanist. He was acknowledged as the most influential
chemist. He is the only person ever to receive two unshared Nobel
Prizes- for Chemistry (1954) and for Peace (1962).
9. Which of the following shows the context
when light travels from denser to rarer
medium?
a)
b)
c)
d)
10. The critical angle of Benzene is 420. Its
refractive index is?
a) 1.33
b) 1.63
c) 2.42
d) 1.51
ANSWERS:
1) a; 2) a; 3) d; 4) b; 5) c;
6) c; 7) d; 8) b; 9) b; 10) d
6. REFRACTION OF LIGHT
AT CURVED SURFACES
1. A magician kept a lens whose refractive
index is 1.47 in a beaker and poured a liquid in it. He observed that the lens has disappeared. What will be the liquid?
a) water b) turpentine c) kerosene d) oil
2. A lens of refractive index n2 is kept in a
medium of refractive index n1. The focal
length of the lens (f) is?
1
a) fα (n +n )
2
1
b) f α(n2+n1)
1
c) f α (n − n )
2
1
d) f α (n2−n1)
3. If three lenses are kept in contact the
resultant focal length is 12cm. If a lens of
focal length of f3 is removed from this
arrangements, the resultant focal length is
60/7 c.m. The third lens is?
a) Convergent lens with f=30 c.m.
b) Convergent lens with f=60 c.m.
c) Divergent lens with f=30 c.m.
d) Divergent lens with f=60 c.m.
4. Find the focal length of lens. Whose refractive index is 1.5 and the radius of curvature
of two surfaces is equal and it is 0.04 m?
a) 0.04 m b) 0.4m c) 4m
d) 40m
5. In which context, the image distance is
equal to focal length of a lens?
a) when the rays are passing through pole
b) when the rays are passing parallel to
principal axis
c) when the rays are passing through focus
d) All the above
6. The location of the object when seeing
through a microscope is?
a) At principal focus
b) At the radius of curvature of the lens
c) In between focus and pole
d) In between focus and radius of curvature
7. The image which we can see through our
eye without screen is?
a) virtual image
b) real image
c) erect image
d) inverted image
8. The rays which are passing very near to
principal axis are known as?
a) Incident rays
b) emerging rays
c) paraxial rays
d) refracted rays
9. What is the lens shown in the figure?
a) double convex
c) double concave
b) plano convex
d) plano concave
10. The focal length of a lens depends on?
a) medium
b) the substance with which the lenses
made
c) position of object d) a and b
ANSWERS:
1) b; 2) c; 3) c; 4) a; 5) b;
6) c; 7) a; 8) c; 9) b; 10) d.
7. HUMAN EYE AND
COLOURFUL WORLD
1. The intensity of light will be detected by?
a) rods
b) cones
c) ciliary muscles
d) aqueous humour
2. The lens to be used to correct the eye
defect in the following figure is?
H
L
a) concave
b) convex
c) bifocal
d) plano convex
3. The refractive index of a prism is?
A
Sin
2
a) n =
A+D
Sin 

 2 
b) n =
Sin A
Sin(A + D)
D

Sin  A + 
2

c) n =
A
Sin  
2
A+D
Sin 

 2 
d) n =
A
Sin  
2
4. The original shape of Rainbow is?
a) semi circle
b) circular
c) three dimensional cone
d) three dimensional sphere
5. The application of scattering of light is?
a) blue colour sky
b) red colour of sun during evening
c) white colour of sun during afternoon
d) All the above
6. A ray which is incident on a prism with an
incident angle 400 has emerged with an
angle equal to the angle of minimum deviation. Find the angle of incidence on the
second surface of the prism?
b) 00
c) 400
d) 200
a) 900
7. The refractive index of a prism with
A=600 is √2. The angle of incidence
required such that the ray must refract
with an angle equal to angle of minimum
deviation is?
b) 600
c) 750
d) 450
a) 300
8. Blue colour of sky is due to the presence
of ____ molecules in atmosphere?
b) O2
c) water d) All
a) N2
9. The decreasing order of wave length of
light due to dispersion of light is?
a) VIBGYOR
b) BGYORIV
c) ROYGBIV
d) ROGYBVI
10. The relation between power of lens (p)
and focal length (f) is?
b) 2p=f
a) p=f
d) p=1/f
c) 2f=p
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10th Class Special- Physical Science
ANSWERS:
1) b; 2) b; 3) c; 4) c; 5) d;
6) c; 7) d; 8) d; 9) c; 10) d.
8. STRUCTURE OF ATOM
1. Units of Planck's constant?
a) Force × time
b) Energy × distance
c) Energy× time
d) Energy/time
2. The frequency of a green light is
6×1014Hz. Its wave length is?
b) 0.2×107m
a) 0.5×10&6m
d) 2×106m
c) 5×10&6m
3. Which of the following cannot be
explained with the help of Bohr's model?
d) Li2+
a) H
b) Be
c) He+
4. Which of the following is not true with
respect to electron?
a) Negatively charged electrons will always be attracted by positively charged
nucleus due to electrostatic forces.
b) The potential energy of electrons which
are far away from nucleus is more
c) The potential energy of electrons which
are far away from nucleus is more
d) All the electrons will come out from a
substance when they are heated.
5. Which of the following is a wrong set of
the quantum numbers?
b) 3, 2, 1, +1/2
a) 3, 1, 0, &1/2
c) 3, 1, 2, &1/2
d) 3, 2, 0, +1/2
6. The correct form of order of orbitals
according to their energy levels is?
a) 3d, 4p, 4s, 4d, 5s b) 3d, 4s, 4p, 4d, 5s
c) 4s, 3d, 4p, 5s, 4d d) 5s, 4p, 3d, 4d, 4s
7. The magnetic quantum number of an electron is &1 and its spin quantum number is
+1/2. Find the orbital in which the electron does not exist?
a) s
b) p
c) d
d) f
8. The principle quantum number of an orbit
in which we can accommodate a maximum of 18 electrons is?
a) 1
b) 2
c) 3
d) 4
9. The 'l' value of the orbital whose magnetic quantum numbers are from &2 to +2 is?
a) 0
b) 2
c) 3
d) 1
10. Electronic configuration of chromium is
a) 1s22s22p63s23p64s23d4
b) 1s22s22p63s23p64s13d5
c) 1s22s22p63s23p64s23d9
d) 1s22s22p63s23p64s13d10
ANSWERS:
1) c; 2) a; 3) b; 4) d; 5) c;
6) c; 7) a; 8) c; 9) b; 10) b
9. CLASSIFICATION OF
ELEMENTS –
THE PERIODIC TABLE
1. The electronic configuration of an element
is 1s22s22p63s2 3p1. Then it is a?
a) Inert gas
b) Transition element
c) Inner transition element
d) Representative element
2. The first I.E. and electron affinity of silicon are 785 KJ/mole and 135 KJ/mole
respectively. The electro negativity is?
c) 1.69
d) 325
a) 786.08 b) 460
3. Which of the following cations has less
atomic size?
7
b) Mg2+ c) Ca2+ d) Al3+
a) Na+
Observe the following table (4-7)
Element Atomic number
K
19
Ca
20
Sr
38
Mn
25
Fe
26
Zn
30
4. Which element has highest atomic radius?
a) K
b) Zn
c) Mn
d) Sr
5. Which element has higher metallic property?
a) K
b) Ca
c) Mn
d) Sr
6. The element which belongs to 2nd group
(Group IIA)?
a) K
b)Ca
c) Fe
d) Mn
7. In the above table, the metal with basic
nature is?
a) Zn
b) Sr
c) K
d) Ca
8. Which of the following metal has highest
reactivity?
a) Li
b) Na
c) K
d) Rb
9. The element with electronic configuration
2, 8, 1 is similar in chemical properties of?
a) Nitrogen
b) Fluorine
c) Phosphorous
d) Argon
10. The atomic number of the 'Mendelevium'
which is named as an honour of
Mendeleef is?
a) 100
b) 105
c) 109
d) 101
ANSWERS:
1) d; 2) b; 3) d; 4) d; 5) d;
6) b; 7) c; 8) d; 9) b; 10) d
10. CHEMICAL BONDING
1. Which of the following is a conductor?
a) Diamond
b) Sulphur in liquid state
c) KCl in liquid state d) crystal of NaCl
2. The electronic configuration of four elements K, L, M, N are K = 1s22s22p1;
L = 1s22s22p6; M=1s22s22p4;
N = 1s22s22p3. Which of these can form a
double bond?
a) K
b) L
c) M
d) N
3. An element A forms a compound ACl4.
The number of valence electrons in A is?
a) 1
b) 2
c) 3
d) 4
4. Which of the following can form a strong
covalent bond?
b) O2
c) N2
d) none
a) H2
5. According to VSEPRT, the middle atom of
the molecule AB3 is left with a lone pair of
electrons. Then the shape AB3 molecule is?
a) pyramidal
b) Quadrant
The process of
re-emission of
absorbed light in all
directions with different
intensities by atoms
or molecules, is
called scattering of light.
Q. The process of converting starch and sugars in to
ethyl alcohols is known as
a) Fermentation b)Esterification c) Saponification d) Combustion
Answer. a) Fermentation
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8
10th Class Special- Physical Science
c) Planar triangular d) linear
6. The bond between Cs and F in the molecule CsF is?
a) Ionic
b) Metallic
c) Covalent
d) Coordinate covalent
7. Hybridization is useful to know the ____
of a molecule?
a) activity
b) shape
c) isomers
d) bond distances
8. X is an element belongs to s-block. Y is a
chalkogen with high electro negativity?
The bond formed between X and Y is
a) metallic bond
b) covalent bond
c) electron pair bond
d) static electric bond
9. Favourable conditions to form an ion are?
a) less I.E
b) Less atomic radius
c) low electro negativity
d) high atomic radius
10. The persons related to VSEPRT?
i) Sidgiwick
ii) Powell
iii) Gillespie
iv) Nyholm
a) i, ii
b) ii, iii
c) iii, iv
d) i, ii, iii, iv
ANSWERS:
1) c; 2) c; 3) d; 4) c; 5) a;
6) a; 7) b; 8) d; 9) b; 10) d
11. ELECTRIC CURRENT
1. The resistances of two substances A and B
are RA and RB such that RA<RB. If their
specific resistances are SA and SB, then
a) SA>SB b) SA=SB c) SA<SB
d) We cannot establish a relation between
SA and SB
2. The resultant resistance between A and B
is?
A
R
R
R
R
b) Voltmeter is connected in parallel and
Ammeter is connected in series to the
battery
c) Both the voltmeter and ammeter are
connected in parallel to the battery
d) Both the voltmeter and ammeter are
connected in series to the battery
6. Which is related to a battery in a circuit?
a) battery supplies electrons to the circuit
b) battery pushes the electrons towards
high potential
c) battery pushes the electrons towards
low potential
d) battery accelerates the electrons to get
high velocity.
7. A wire of 36Ω is cut in to 'n' parts and each
part is connected in parallel. The effective
resistance of the combination is 1Ω. Then
the value of 'n' is?
a) 8
b) 5
c) 6
d) 7
8. The value of current I in the figure is?
a) R/2
b) R
c) 2R
d) 4R
3. If a resistor is connected to a battery its
temperature increases, but which of the
following does not change
a) drift velocity of electrons
b) Specific resistance
c) Resistance
d) density of electrons
4. Student: What happens to the resistance
of a resistor when temperature increased.
Teacher: The resistance decreases when
temperature increases.
Which of the following explanation supports above discussion
a) The density of electrons increases with
temperature
b) The charge on every electron increases.
c) The mass of every electron increases
d) number of collisions will increase.
5. Which of the following is a correct explanation for the following diagram
v
v
a) Voltmeter is connected in series and
Ammeter is connected in parallel to the
battery
7.
8.
9.
a) 9A
b) 13A
c) 18A
d) 12A
9. Coulomb/sec = ?
a) Ampere b) Volt
c) Ohm d) Watt
10. Observe the following statements?
P: Electricity passes through every appliance when connected in series.
Q: The potential difference will be same
on every appliance when connected in
parallel
a) Both are true
b) P is true but Q is false
c) P is false but Q is true
d) Both are false
a) North b) South c) East
d) West
10. Which of the following is an application
of Faraday's law of electromagnetic induction?
a) Metal detector
b) ATM card
c) Induction stove
d) All the above
ANSWERS:
1) d; 2) c; 3) d; 4) d; 5) b;
6) c; 7) c; 8) b; 9) a; 10)a
1. Galena is an ore of?
a) Al
b) Hg
c) Pb
d) Zn
2. The suitable method to remove gangue
from the sulphide ore is?
a) Froath floatation b) Hand picking
c) washing in water
d) magnetic separation
3. Fe2O3+2Al →2Fe+Al2O3+energy. This
reaction shows?
a) Distillation
b) Thermite process
c) Calcination
d) Roasting
4. The formula of gypsum ___?
b) CaSO4. 2H2O
a) CuSO4. 2H2O
c) CuSO4. 1/2H2O d) CaSO4. 1/2H2O
5. The ore is undergone ___ in smelting?
a) Oxidation
b) Reduction
c) Neutralization
d) None
6. Which of the following is an ore of carbonate form?
a) Magnacite
b) Bauxite
c) Gypsum
d) Galena
7. The process of heating ore in the absence
of oxygen is known as?
a) Roasting
b) Smelting
c) Distillation
d) Calcination
8. The impurities present in crude ore is
known as?
a) Gangue
b) Flux
c) Slag
d) Mineral
9. The furnace used to get iron from
Hematite?
a) Reverbaratory furnace
B
R
6.
kept perpendicular to the uniform magnetic field is?
a) F=lB
b) F=IlB
c) B=IlF
d) F=Il/B
The scientist who worked alot to understand electromagnetism is?
a) Newton
b) Ampere
c) Oersted
d) Pauling
A proton of mass 1.6 × 10&27Kg enters in to
a magnetic field of 3T with a velocity of
107 m/sec, making an angle of 300 with the
field. The force acting on the proton is?
b) 4.0×10&12 N
a) 2.4×10&12 N
&12
d) 1.6×10&12 N
c) 3.2×10 N
The device which converts mechanical
energy in the coil denotes direction of
electricity?
a) Electric motor
b) Generator
c) Solenoid
d) Galvanometer
The ___ pole is induced on the surface, if
the arrow marks in the coil denotes direction of elecricity?
12. ELECTROMAGNETISM
1. What did you observe in the experiment to
observe the direction of force when magnetic field is applied on a current carrying
conductor?
a) The wire moved towards the north pole
of the magnet
b) The wire moved towards the south pole
of the magnet
c) The wire donot move
d) The wire moved by following right
hand thumb rule.
2. AC is more comfortable than DC in transmission of electricity, because?
a) AC can be rectified
b) AC can be easily produced
c) We can use this conductors
d) This is safe
3. The maximum value of electricity of a
A.C is 5A. Then its rms value is?
a)
5
A
2
b)
2
A
5
c) 5 2A
d) 5Α
4. Faraday's law of the electromagnetic
induction is?
b) ε =∆φ. ∆t
a) ε = ∆t / ∆φ
d) ε = ∆φ&∆t
c) ε = ∆φ/ ∆t
5. The force acting on a wire carrying current
ANSWERS:
1) d; 2) a; 3) a; 4) c; 5) b;
6) c; 7) a; 8) b; 9) a; 10) d
13. PRINCIPLES OF
METALLURGY
b) Retort furnace
c) Blast furnace
d) magnetic separation mission
10. The chemical formula of rust is?
b) Fe2O3. XH2O
a) Fe2O3
c) Fe
d) FeO
ANSWERS:
1) c; 2) a; 3) b; 4) b; 5) b;
6) a; 7) d; 8) a; 9) c; 10) b
14. CARBON AND ITS
COMPOUNDS
1. Which of the following is an acetic acid?
a) A liquid with sweet smell
b) A liquid with pungent smell
c) A smell less liquid
d) A liquid with bad smell
2. A homologous series is given below.
Identify the next element in this series
CH3OH;C2H5OH;C3H7OH,....
b) C4H9OH
a) C5H11OH
c) a &b
d) none
3. 2ml of Ethanoic acid is taken in 3 beakers
A, B and C and water is added to each test
tube at 2ml, 4ml and 6ml each. Which test
tube will form a clear fluid?
a) only in A
b) only in A and B
c) only in B and C d) in all test tubes
4. The process of converting starch and sugars into ethyl alcohols is known as?
a) Fermentation
b) Esterification
c) Saponification
d) Combustion
5. Soap solution is a ____ solution?
a) colloidal
b) true
c) suspension
d) acidic
6. Aldehyde is denoted by?
a) ol
b) Al
c) one
d) ene
7. The concept of the Hybridization of
orbitals is introduced by?
a) Rutherford
b) Neil's Bohr
c) Broglie
d) Linus Pauling
8. sp2 Hybridization can be observed in?
b) HC ≡ CH
a) CH2=CH2
d) carbon
c) CH4
9. The role of ___ is under study in the manufacturing of medicines to remove cancer
cells such as melanoma?
a) Nano tubes
b) Fullerins
c) Diamond
d) Graphite
10. ___ is obtained when Ammonium cyanate
is heated?
a) Graphene
b) Ethanol
c) Urea
d) Acetaldehyde
ANSWERS:
1) a; 2) c; 3) d; 4) a; 5 b;
6) b; 7) d; 8) a; 9) b; 10) c
Physical methods adopted in
dressing the ore are:
hand picking, washing,
froth flotation,
Magnetic separation etc.
Q. A sweet odour substance formed by
the reactor of an alcohol and
a carboxylic and is?
Answer. Ester
There are NO Fill in the
Blanks in question paper.
BUT, this BIT BANK is useful
to answer One, Two mark or
ANY type of questions.
1. HEAT
1. Specific heat S = ?
2. Boiling point of water is ____Cº
3. Latent heat of vaporization of water is
____.
4. The process of converting solid into liquid
is called ____.
5. The amount of a water vapour present in
air is called____.
6. _____ is the reverse process of evaporation.
ANSWERS
 Q 
1) 
; 2) 100; 3) 540 cal/gm;
 m∆T 
4) melting; 5) Humidity; 6) condensation.
2. CHEMICAL REACTIONS
AND EQUATIONS
1. The reaction 2N2O → 2N2 + O2 is an
example for ____ reaction.
2. The decomposition of vegetables into
compost is an example of ____ reaction.
3. Rancidity is an ____ reaction.
4. ____ chemical reaction is involved in the
corrosion of iron.
5. By painting we can prevent ____.
ANSWERS
1. Magnification produced by a convex mirror
is ____.
2. If magnification m is >1 than the size of
the image is ____.
3. The distance between pole and focus is
____.
4. Mirror formula is ____.
5. Light chooses the path which takes the
least time to travel. This is called____
principle.
ANSWERS
1) less than 1; 2) Big; 3) Focal length;
 1 1 1
= +  ; 5) Fermat
 f u v
4) 
10th Class Special- Physical Science
Bit B a n k
mula ____.
5. The acid forms in stomach is ____.
6. Many salts absorb water from atmosphere
this property is called ____.
ANSWERS
2. The formula for no. of electrons in a shell
is ____.
3. The subshell of the orbital for l = 1 is
____.
4. ____is a group of wavelength.
5. Splitting of spectral lines due to magnetic
field is called____.
1) 1-14; 2) Hydrochloric acid; 3) Antacid;
4) CaOCl2; 5) HCl; 6) Crystallisation
ANSWERS
1) Degenerate orbitals; 2) 2n2; 3) p;
4) spectrum; 5) Zeeman effect
1. At critical angle of incidence, the angle of
refraction is ____
2. Light travelling along a normal is ____
refracted
3. ____is the basic principle of optical fibre.
4. The unit of refractive index is ____.
5. The angle of refraction for critical angles
is ____.
9. CLASSIFICATION OF
ELEMENTS –
THE PERIODIC TABLE
1.
2.
3.
4.
5.
ANSWERS
1) 90º; 2) not; 3) Total internal reflection;
4) No units; 5) 90º
1A group elements are called ____.
Inner transition elements are called ____.
Father of periodic table____.
Atomic radius is measured in ____units.
Noble gases belongs to ____ group of
periodic table.
ANSWERS
1) Alkalimetals; 2) ƒ Block elements;
3) Mendeleeff; 4) Aº; 5) 18th
6. REFRACTION OF LIGHT
AT CURVED SURFACES
1. S.I Unit of the power of a lens is____.
2. The power of a concave lens is____.
3. Focal length of a convex lens is ____
when it is kept in water.
4. Lens formula is given by____.
5. Lens maker formula is ____.
10. CHEMICAL BONDING
ANSWERS
1) dioptre; 2) negative; 3) increases;
ANSWERS
1
 1 1 
 1 1 1
= −  ; 5)  = (n − 1) −   ;
f
f
v
u
 R1 R 2  



7. HUMAN EYE AND
COLOURFUL WORLD
1. The intensity of light maximum at ____ in
scattering of light.
2. The distance between the eyes lens and
retina is about____.
3. The maximum focal length of the eye lens
is about____.
4. Myopia can be corrected by using ____
lens.
5. Hyper metropia can be corrected by using
____ lens.
1.
2.
3.
4.
5.
1) FCC Latric crystalline structure;
2) H2O; 3) Linear; 4) Metallic character;
5) Linus Pauling; 6) Pyramidal
11. ELECTRIC CURRENT
1. 1KWH: ____ Joules
2. An electronic instrument is used in measuring electric current and electric resistance is ____.
3. Units of resistance____.
4. The surface of earth is taken to be at ____
potential.
5. Kirchoff’s loop law is based on the conservation of____.
6. Voltmeter is always connected in____ in a
circuit.
ANSWERS
ANSWERS
4. ACIDS, BASES AND SALTS
1. Range of pH scale ____.
2. During digestion stomach produces ____.
3. ____ medicine is used for treating indigestion.
4. Bleaching powder is represented by for-
1) 90º; 2) 2.5 cms; 3) 2.27 cms; 4) concave; 5) convex
1) 3.6 x 105; 2) multimeter; 3) Ohm;
4) Zero; 5) energy; 6) parallel
8. STRUCTURE OF ATOM
1. The orbitals which have same energy are
called ____.
3.
4.
5.
9
wire placed in uniform magnetic field of
the wire is oriented θ angle to magnetic
field is ____.
The magnetic force on a current carrying
wire places in uniform magnetic field if
the wire is oriented parallel to magnetic
field is ____.
The device used for producing electric
current is called ____.
Unit of magnetic flux____.
A metallic wire carrying an electric current is associated with it’s a____.
A current that flows in the same direction
is____.
ANSWERS
1) ILB sinθ; 2) 0; 3) Generator; 4) Weber.; 5) magnetic field; 6) direct
13. PRINCIPLES OF
METALLURGY
1. Formula of pyrolusite ____.
2. Arrange Ag, Mg, K in activity series
____.
3. The purpose of smelting an ore is to ____
It.
4. The formula of rust ____.
5. Smelting is carried out in____furnace.
6. The new substance added to ore to remove
gangue is called____.
ANSWERS
NaCl is said to possess ____.
Example for polar solvents is ____.
The shape of BeCl2 is ____.
Electro positivity is also called as ____.
Valence bond theory was proposed by
____.
6. The shape of NH3 is ____.
4) 
2.
6.
5. REFRACTION OF LIGHT
AT PLANE SURFACES
1) Chemical decomposition; 2) Oxidation; 3) oxidation; 4) Oxidation; 5) corrosion
3. REFLECTION OF LIGHT
BY DIFFERENT SURFACES
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12. ELECTROMAGNETISM
1. The magnetic force on a current carring
1) MnO2; 2) K>Mg>Ag; 3) reduce;
4) Fe2O3XH2O; 5) Blast; 6) flux
14. CARBON AND
ITS COMPOUNDS
1. The hydrocarbon that contain –OH group
are called ____
2. Allotropes forms due to the difference in
the ____
3. Soaps are the alkali salts of____.
4. Number of single covalent bonds in
ammonia are____.
5. Sodium lauryl sulphate is an example of
____.
6. A sweet odour substance formed by the
reactor of an alcohol and a carboxylic acid
is____.
ANSWERS
1) Alcohols; 2) arrangements atoms; 3)
Higher fatty acids); 4) Three; 5) Synthetic
detergent; 6) Ester
Carbon compounds with identical molecular formula but different structures are called
structural isomers.
10
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VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
10th Class Special- Physical Science
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Special properties of carbon
Carbon - Hybridisation: - Sp Hybridisation - Sp2
Hybridisation - Sp3 Hybridisation.
Preparation and properties of carbon compounds
Chapter Wise Key Concepts
1
Heat
Heat
Temperature
Thermal equilibrium
Specific heat:- Factors effecting specific
heat - Applications of specific heat capacity in our daily lilfe. - To find the specific
heat of solids and liquids.
Method of mixtures
Evaporation
Condensation
◆ Fog and dew
Humidity
◆ Melting
Boiling
Latent heat of vaporization
Latent heat of fusion
Freezing.
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2
Chemical reactions
and equations
5
Refraction
Rarer and denser media
Refractive index
Relative refractive index
Snells law
Total internal reflection
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6
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Curved serface: - Concave surface - Convex surface
Refraction of light at concave and convex
surfaces
Refraction of light through denser to rarer
and rarer to denser at curved surfaces and
thier ray diagrams.
Lonses
Formation of images through convexlens
and thier ray diagrams
Lens formula and lens makers formula.
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Least distance and distant vision
Angle of illusion
General defects of vision
power of lens
Daily life applications of scattering of light
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Reflection of light by
different surfaces
Human eye and colourful world
10 Chemical Bonding
Structure of atom
Why do atoms combine
Lewis electron dot structure
Valency electron theory ◆ Ionic bond
Formation of NaCl, MgCl2, Na2O and
AlCl3 molecules.
Valence shell electron pair repulsion theory (VSEPRT)
Bond angle according to VSEPRT.
Hybridization.
Formation of BeCl2, BF3, NH3 and H2O
molecules by hybridization.
Differences between ionic and covalent
substances
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11
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Reflection of light
Laws of reflection
Formation of image and its characteristics
through a plane mirror.
Spherical mirrors:- Concave mirrors Convex mirrors.
Formation of image and its characteristics
through a concave mirror
Rules for drawing ray diagrams
Rules for drawing ray diagrams
Mirrors formula
Sign convention to be followed while
using mirror formula.
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Acids, Bases and salts
Reactions of acids, and bases with indicators.
Chemical reactions of acids and bases: Reaction with metals - Reaction with
metal carbonates and metal hydrogen carbonates.
Neutralization
Propertus of acids
Propertus of bases
PH value and PH scale
PH in our daily life
Salts:- Sodium chloride - Soduium hydroxide - Bleaching powder - Sodium Carbonate - Sodium bi carbonate - Plaster of
paris.
Water of crystalization.
Spectrum
Wave nature of light
Electromagnetic spectrum
Bohr's model of hydrogen atom and its
limitations.
Quantum mechanical model of atom.
Quantum numbers:- Principal quantum
number - Angular momentum qunatum
number.
Magnetic quatum number.
Spin quantum number.
Electronic configuration:- Aufbau rule Hund's rule - Pauli's exclusion - Principle.
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Electromagnetism - Oersted's experiment
Magnetic field
13
Magnetic flux
Magnetic flux density
Magnetic lines of force
Magnetic field due to electric current
Magnetic field due to staraight wire carrying current.
Magnetic field due to circular coil
Magnetic field due to solenoid
Magnetic force on moving charge and current carrying wire
Electric motor
Electromagnetic induction - Faraday's
laws
Induced emf - Lenz's law
Applications of electromagnetic induction
Generator.
14
Electromagnetism
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Carbon and its Compounds
Special properties of carbon
Carbon - Hypridisation: - Sp Hybridisation - Sp2 Hybridisation - Sp3 Hybridisation.
Allotropes of carbon:- Diamond - Graphite - Buckminister pullerin - Nano tubes
Nature of carbon:- Catanation - Allotropy
- Formation of multiple bands
Hydrocarbons: - Saturated Hydrocarbons
- Alkanes - Unsaturated Hydro carbons Alkens - Alkynes
Functional groups
Nomen Nomeclature of carbon compounds
Chemical properties of carbon compounds
Combustion reactions, oxidetion reactions, addition reactions, substitution reactions
Preparation and properties of carbon compounds - Ethanol Ethanoic acid
Esterification
Soaps, saponification.
Principles of Metallurgy
Ore
Concentration of ore
Classification of elements
the periodic table
Necessity of classifications
Dobereiner triads
Newlands law of octaves
Mendeleev's classification:- postulates Limitations
Modern periodic table (Long form periodic table)
Arrangement of elements in groups and
periods.
Properties of elements and their trends in
groups and periods.
Valence
Atomic radius
Ionization energy
Electron affinity
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12
by
Extraction of crude metal from the ore
metals of high reactivity
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Electric current
Electric current (Lorenz - Drude theory)
Potential difference
Working of a battery
Electromotive force (emf)
Relation between current and potential
difference - ohm's law
Electric shock
Resistance
Factors influencing resistance of a substance
Electric circuit
Series combination of resistors
Parallel combinatio of resistors
Kirchoff laws:- Junction law - Loop law
Electric power
House hold electric consumption, overload, use of fuse.
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8
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7
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3
Reflection of light
at Curved surfaces
Electronegativity.
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Chemical equations:- Writing a chemical
equation - Balancing a chemical equation
- Other information given by a chemical
reaction.
Chemical reactions:- Chemical combination - Chemical decomposition - Displacement - Double displacement.
Oxidation & Reduction
Oxidation in daily life, Rancidity
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Refraction of light at plane surfaces
Halides
Oxides
Metals of medium reactivity
Carbonate ore
Sulphide ore
Calcination
Roasting
Hand picking
Washing
Froth flotation
Magnetic Separation
Metals of low reactivity
Sulphide ore
Roasting
Electrolysis of molten ore
Metal
(eg: Na, Mg, Al,etc.,)
Chemical Reduction
Auto Reduction
Displacement Method
Elecrolytic reduction
Oxides
Reduction
Oxide of metal
Metal
Reduction of metal
Refinig (eg.Ag)
Refining of metal
Distillation
(eg: Cu, Zn, etc.,)
Poling
Liquation
Electrolytic refining
What is chemical displacement, write the list of apparatus/material and procedure of the experiment that you
have conducted to observe chemical displacement?
VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
11
10th Class Special- Physical Science
General Science-1 Model Paper
6. aldehyde among the following is
b) C2H5OH
a) C2H5CHO
d) C2H5COCH3
c) C2H5COOH
7. Which is not belongs to halogen family
a) F
b) Cl
c) Al
d) Br
8. Angle of prism is 60°, and angle of minimum deviation is 30° . The refractions
index of that prism is
General Science - Paper-1
(English Version)
Time.2.45 hr
Max.Marks: 40
General Instructions:
i. This Question paper consists part-A and
Part-B.
ii. PartA consists 3 sections.
iii. Answer all questions.
iv. Section-III consists internal choice. Choose
the question accordingly and answer it.
v. The answers for Part-B must be written
in the question paper itself and attach it
to your answer book.
vi. The first 15 minutes is allotted for reading and understanding the question
paper.
PART-A
SECTION-I
Instructions:
i. Answer all questions.
ii. Each question carries 1 mark
iii. Answer must be limited to 1-2sentences.
7×1=7M
1. 5V potential difference is allowed to pass
across a resistance of 25Ω in a circuit. calculaated the current in the circuit.
2. How do the fog formed?
3. Sodium tested a solution with red litmus
and obeserved that it changed into blue
colour. What will be the PH range of that
solution?
4. Draw a diagram showing the total internal
reflaction.
5. What is the difference between an orbit
(shell) and orbital of an atom?
6. Which molecule exists in planar triangular shape? draw its shape.
7. What are the major parts of a furnace
which is used to carryout pyrochemical
reaction in metallurgy?
SECTION-II
Instructions:
i. Answer all questions.
ii. Each question carries 2 marks.
iii. Answer must be limited to 2-4sentences.
2×6=12M
8. What are the gases evolved when Lead
Nitrate is heated? How do you test these
gases?
9. Give any two daily life applications where
we use convex and concave mirrors.
10. How do you support that the element Mg
belongs to 3rd period and 2nd group?
11. Where do we observe the application of
dispersion light in nature?
12. Write the structures of the following
i) 2-Methyl -pentane-3-Ole
ii) 3,4 Di Chloro -But-1-ene
a) √2
b)
1
2
c) 0.5
d) 1
9. The value of I3 from the following juncI1
tion is
6A I2
a) 2A
3A
b) 4A
2A
c) 5A
I5
I3
4A
d) 7A
I4
13. What is the magnification of the image
formed. When an object is kept at a distance of 30cm from a convex lens of focal
length 20cm.
SECTION-III
Instructions:
i. Answer all questions.
ii. Each question carries 4 marks
iii. There is an internal choice for each
question. Choose the question accordingly and answer it.
iv. Answer must be limited to 6-8 sentences.
4×4=16M
14. Expain the role of four quantun numbers
in assessing the exact position of an electron in an atom?
(or)
State Lenze's law and explain how it is
helpful in explaining the energy ------ in
electromagnetic induction.
15. What is chemical displacement, write the
list of apparatus/material and procedure of
the experiment that you have conducted to
observe chemical displacement?
(or)
Write the precautions, list of apparatus
/material and your observations for the
experiment that you have conducted to
know the required conditions for rusting
of iron.
16. Observe the following table
substance
specific resistance (Ωm)
Nickel
6.99×10–8
Lead
2.20×10–7
Silver
1.59×10–8
Silicon
6.40×102
Air
1.30×1016
i) which of the above is considered as a
bad conductor of electricity.
ii) which of the above is considererd as a
good conductor of electricity.
iii) Which of the above substances is a
semi conductor
iv) what is the metal present in nichrome?
(or)
Observe the following table.
Substance
PH Value
lemon juice
2.1
distilled Water
7
coffee
4.8
washing Soda
12.8
Baking Soda
8.1
i) Among the substances given in the table. which is strong acid and which is
strong base?
ii) if phenolphthalein indicator is added to
the solution baking soda, what is its
colour?
iii) which of the above substance does not
show conductivity.
iv) how the pH value of distilled water
changes when lemon juice is added to it?
17. Draw ray diagrams to the following situations by a convex lens?
i) point size image is formed
ii) virtual image is formed
(or)
Bhumika's grandfather is unable to see the
nearest objects. Draw diagrams showing
his vision defect and its correction.
PART-B
×½=5M
10×
1. The C.G.S. units of g in Q = ms∆Q is
a) cal.g.°C
b) cal/g°C
c) cal/g
d) cal.g
2. why do we use convex mirror as rear view
mirror for vehicles
a) enlarged image is formed
b) real image is formed
c) diminished image is formed
d) inverted image is formed
3. The velocity of light in a substance is
2x108 m/s. Then the refractive index of
that substance is
a) 1.5
b) 2.5
c) 3.5
d) 3
4. Which of the following has highest ionisation energy?
a) C
b) Si
c) Ge
d) Sn
5. shapes of molecules was explained by
a) VSEPRT theory
b) valence bond theory
c) lewis dot theory
d) ion theory
10. The bond formed by overlapping of two
orbitals along their axes in
a) covalent
b) ionic
c) Π− bond
d) σ − bond
Answers
1) b 2) c
6) a 7) c
3) a
8) a
4) d
9) c
5) a
10) b
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VýS$Æý‡$ÐéÆý‡… l íœ{ºÐ]lÇ l 18 l 2016
12
Career Counselling
KEY POINTS
Different Solutions
pH Values
Solution
HCl
NaOH
Distilled water
Lemonjuice
Coffee
Carrot Juice
Soda Water
Tomato Juice
Saliva (before meal)
Saliva (after meal)
pH value
1
13-14
7
2.5
5
4
6
4.1
7.4
5.8
USES
Calorimeter: Determination of specific heat of substance.
Thermometer: Determination of
Temperature
Prism: Observation of Angle of
Dispersion.
pH paper: Observation of Acid –
Base Strength.
Bleaching powder: Used as decolorizing agent, oxidant, used in
preparation of chloroform, used in
chlorination process.
Baking Soda: Manufacture of
cakes, preparation of Antacid,
preparation of Anti septic.
Washing Soda: Used in Glass, soap,
paper industry preparation of borax,
used to removal of hardness of
water.
Galvanometer: Determination of
electric current.
Electric motor: Convert the electric
energy to mechanical energy.
Dynamo: Convert the mechanical
energy to electric energy
Blast furnace: used to smelting
process.
Voltmeter: Determine the potential
difference.
Substance
Bauxite
Faraday: Laws of electrolysis.
Maxwell: Electron magnetic theory
J.J. Thomson: Watermelon model.
Rutherford: Planetory Model
Einstein: Laws of mass equivalence
Sommerfeld: Elliptical orbit model
Schrodinger: Wave equation
Maxplank: Quantum theory
Neils Bohr:
Principle Quantum number
Ulenbeck & Goudsmith:
Spin Quantum number
Dobereiner: Triad Theory
Sorensen: pH Scale
Newlands: Octave theory
Sumio Lijima: Nanotubes
: Formula
: Al2O32H2O
Epsum salt
: MgSO47H2O
Sinnabar
Magnetite
: HgS
: Fe3O4
Galena
Carnalite
: PbS
: KClMgCl26H2O
Gypsum
: CaSO4 2H2O
Pyrotusite
: MnO2
Hypo
: Na2S2O32H2O
Bleaching powder
: CaOCl2
Plaster of Paris
: CaSO4½H2O
Ethanol
: C2H5OH
Ethyl Acetate
: CH3COOC2H5
Soap
: C17H35COONa
Zincite
Lime stone
: ZnO
: CaCO3
Horn silver
Zinc Blende
Rock Salt
Hematite
: AgCl
: ZnS
: NaCl
: Fe2O3
Specific heat: cal/g.cº (or) J/Kg-k.
Latent heat of fusion: Cal/gm(or) J/k.g
Power of lens: dioptres
Electric current: Ampere
Specific resistivity: Ohm-mt
Electric energy: KWH
Atomic Radius: Angstrom Unit (Aº)
Ionization potential: Electron Volt.
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PHYSICAL
CONSTANTS – VALUES
Specific heat of lead:
0.031Cal/g-Cº;130 J/Kg - k
Specific heat of Mercury:
0.033Cal/g-Cº; 139 J/Kg – k
Latent heat of Vaporization:
540 Cal /gm
Latent heat of fusion: 80 Cal / gm
Refractive Index of Diamond: 2.42
Refractive Index of Benzene: 1.50
Refractive Index of Quartz: 1.46
ELECTRONIC
CONFIGURATION
1s22s22p63s1
Sodium (11):
Potassium (19): 1s22s22p63s23p64s1
Calcium (20): 1s22s22p63s23p64s2
Iron (26): 1s22s22p63s23p64s23d6
Chromium(24): 1s22s22p63s23p64s13d5
Copper (29): 1s22s22p63s23p64s13d10
Phosphrous (15): 1s22s22p63s23p3
Nickel (28): 1s22s22p63s23p64s23d8
Sulphur (16): 1s22s22p63s23p4
Zinc (30): 1s22s22p63s23p64s23d10
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Ððl»Œæ-OòÜsŒæ: www.sibm.edu
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Ððl»Œæ-OòÜsŒæ: www.mica.ac.in
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Ððl»Œæ-OòÜsŒæ: www.xlri.ac.in
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Ððl»Œæ-OòÜsŒæ: www.imt.edu
Ððl»Œæ-OòÜsŒæ: www.andhrauniversity.edu.in
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Ððl»Œæ-OòÜsŒæ: www.skuniversity.org
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Ððl»Œæ-OòÜsŒæ: www.kakatiya.ac.in
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D&-Ððl$-Ƈ¬ÌŒæ : sakshieducation@gmail.com
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