Time: 60 Min.
Aapka Apna
Institute
Total Ques: 26
Total Marks: 26
Test: Class 10 Science
Assertion Reasoning
Class: 10
Subject: Science
Student Name:
Roll No.
Section:
Instructions:
Que. 1
For question two statements are given-one labelled Assertion (A) and the other
labelled Reason (R). Select the correct answer to these questions from the codes
(a), (b), (c) and (d) as given below:
Assertion: Cl is a stronger acid than acetic acid.
Reason: On dissociation, HCl yields lesser hydrogen ions for the same
concentration as compared to acetic acid.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 2
For question two statements are given-one labelled Assertion (A) and the other
labelled Reason (R). Select the correct answer to these questions from the codes
(a), (b), (c) and (d) as given below:
Assertion: Antacids neutralize the effect of extra acid produced in the stomach
during indigestion and thus provide relief.
Reason: Antacids are mild bases.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 3
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Metals generally act as reducing agents.
Reason: The reducing character is expressed in terms of electron releasing
tendency.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 4
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Non-metals are electronegative in nature.
Reason: They have tendency to lose electrons.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 5
For question two statements are given- one labelled Assertion (A) and the other
labelled Reason (R). Select the correct answer to these questions from the codes
(a), (b), (c) and (d) as given below:
Assertion: Diamond and graphite do not have the same crystal structure.
Reason: Diamond is crystalline while graphite is amorphous.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 6
For question two statements are given- one labelled Assertion (A) and the other
labelled Reason (R). Select the correct answer to these questions from the codes
(a), (b), (c) and (d) as given below:
Assertion: Covalent compounds are generally poor conductor of electricity.
Reason: They consist of molecules and not ions which can transfer charge.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 7
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Nobel elements were not included in Mendeleev's periodic table.
Reason: Mendeleev arranged the then known elements in order of their
increasing atomic mass.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 8
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Atomic mass of certain elements are expressed in fraction, taking in
account the availability of its various isotopes.
Reason: Isotopes of an element have the same atomic mass but different atomic
number.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 9
For two statements are given- one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: The plants store some of the waste products in their body parts.
Reason: Raphides are the solid waste products of plants.
A.
Both A and R are true and R is correct explanation of the assertion.
B.
Both A and R are true but R is not the correct explanation of the assertion.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 10
For two statements are given- one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Ventricles have thicker walls than auricles.
Reason: Ventricles have to pump blood into various organs with great pressure.
A.
Both A and R are true and R is correct explanation of the assertion.
B.
Both A and R are true but R is not the correct explanation of the assertion.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 11
In the following questions, a statement of Assertion is given by the corresponding
statement of Reason. Of the statements, mark the correct answer as:
Assertion: Cerebrum acts as the main thinking part of the brain.
Reason: Cerebrum is responsible for reasoning, speech, intelligence, sight,
hearing, usage of information, etc.
A.
If both Assertion and Reason are true and Reason is the correct
explanation of Assertion.
B.
If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
C.
If Assertion is true, but Reason is false.
D.
If Assertion is false, but Reason is true.
1 Marks
Que. 12
Directions: In the following questions, the Assertions (A) and Reason(s) (R)
have been put forward. Read both the statements carefully and choose the
correct alternative from the following:
Assertion: Impulse travels from dendrite to cell body and then along the axon to
its end.
Reason: Information acquired at the end of the dendrite tip of a nerve cell sets of
an electric impulse.
A.
Both A and R are true and R is the correct explanation of A.
B.
Both A and R are true but R is not the correct explanation of A.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 13
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Self-pollination occurs when the pollen grains from the anther of a
flower are transferred to the stigma of same flower or another flower on the same
plant.
Reason: Insects and wind help in autogamy.
A.
Both A and R are true and R is correct explanation of the assertion.
B.
Both A and R are true but R is not the correct explanation of the assertion.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 14
In each of the following questions, a statement of Assertion is given by the
corresponding statement of Reason. Of the statements, mark the correct answer
as:
Assertion: AIDS is an incurable and a fatal bacterial infection.
Reason: It suppresses the immune system of the body.
A.
If both Assertion and Reason are true and Reason is the correct
explanation of Assertion.
B.
If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
C.
If assertion is true, but Reason is false.
D.
If assertion is false, but Reason is true.
1 Marks
Que. 15
For two statements are given- one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion : A heterozygous tall plant when crossed with homozygous dwarf plant
will produce tall and dwarf plants in the ratio of 3 : 1.
Reason: A heterozygous tall plant will produce two types of gametes, i.e., one
with T and other with t whereas homozygous dwarf plant produce all gametes
with t only.
A.
Both A and R are true and R is correct explanation of the assertion.
B.
Both A and R are true but R is not the correct explanation of the assertion.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 16
For two statements are given- one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Accumulation of variation in a species increases the chances of its
survival in changing environment.
Reason: Accumulation of heat resistance in some bacteria ensure their survival
even when temperature in environment rises too much.
A.
Both A and R are true and R is correct explanation of the assertion.
B.
Both A and R are true but R is not the correct explanation of the assertion.
C.
A is true but R is false.
D.
A is false but R is true.
1 Marks
Que. 17
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Rainbow is an example of the dispersion of sunlight by the water
droplets.
Reason: Light of shorter wavelength is scattered much more than light of larger
wavelength.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 18
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: The light of violet colour deviates the most and the light of red colour
the least, while passing through a prism.
Reason: For a prism material, refractive index is highest for red light and lowest
for the violet light.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 19
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: It is advantageous to transmit electric power at high voltage.
Reason: High voltage implies high current.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 20
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: In a chain of bulbs, 50 bulbs are joined in series. One bulb is
removed now and circuit is completed again. If the remaining 49 bulbs are again
connected in series across the same supply, then light gets decreased in the
room.
Reason: Net resistance of 49 bulbs will be less than 50 bulbs.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 21
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: A solenoid tends to expand, when a current passes through it.
Reason: Two straight parallel metallic wires carrying current in same direction
attract each other.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 22
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: The magnetic field intensity at the center of a circular coil carrying
current changes, if the current through the coil is doubled.
Reason: The magnetic field intensity is dependent on current in conductor.
A.
Both A and R are true, and R is correct explanation of the assertion.
B.
Both A and R are true, but R is not the correct explanation of the
assertion.
C.
A is true, but R is false.
D.
A is false, but R is true.
1 Marks
Que. 23
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: Property of converging of a convergent lens does not remain same in
all media.
Reason : Property of lens whether the ray is diverging or converging is
independent of the surrounding medium.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 24
For two statements are given-one labelled Assertion (A) and the other labelled
Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
Assertion: ln diffused reflection, a parallel beam of incident light is reflected in
different direction.
Reason : The diffused reflection of light is due to the failure of the laws of
reflection.
A.
Both A and R are true, and R is correct explanation of the assertion
B.
Both A and R are true, but R is not the correct explanation of the assertion
C.
A is true, but R is false
D.
A is false, but R is true
1 Marks
Que. 25
In the following questions, a statement of Assertion is given by the corresponding
statement of Reason. Of the statements, mark the correct answer as:
Assertion: Concave mirror is best suited for use in a solar cooker.
Reason: Concave mirror converges large amount of light of the sun into the solar
cooker.
A.
If both Assertion and Reason are true and Reason is the correct
explanation of Assertion.
B.
If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
C.
If Assertion is true, but Reason is false.
D.
If Assertion is false, but Reason is true.
1 Marks
Que. 26
In the following questions, a statement of Assertion is given by the corresponding
statement of Reason. Of the statements, mark the correct answer as:
Assertion: The hydrogen bomb is more harmful than nuclear fission.
Reason: Nuclear fusion produce more energy than nuclear fission.
A.
If both Assertion and Reason are true and Reason is the correct
explanation of Assertion.
B.
If both Assertion and Reason are true, but Reason is not the correct
explanation of Assertion.
C.
If Assertion is true, but Reason is false.
D.
If Assertion is false, but Reason is true.
1 Marks