DCHM 101 - Aje Taiwo Tutorials

advertisement
Aje Taiwo Tutor
1.
2.
3.
4.
5.
FSC 102/DCHM101 (Introductory Chemistry)
Which quantum number(s) do 2s and 2p orbitals have in
common?
(a) n (b) l and m (c) l
(d) n and l
Which set of quantum numbers define an electron in an
atomic orbital with n=3 and l=1.
(a) n=3, l=1, m=4, s=+½
(b) n=3, l=1, m=1, s=+1
(c) n=3, l=1, m=-1, s=+½
(d) n=3, l=1, m=-4, s=-½
Calculate the density of mercury if 1×102g of mercury
occupies 7.36cm3.
(a) 1.360×10-4 kgm-3
(b) 1.36×10-2 kgm-3
-3
(c) 1.36kgm
(d) 1.36×10-3 kgm-3
A climber is at the base of a rock and he estimates the height
of the rock to be 155ft. He has a rope that is 65metres long. Is
it long enough to reach the top of the rock?
(a) Yes
(b) No
(c) Maybe
(d) None of the above
If the temperature of a room taken by a student is 25.8ºC but
the actual temperature is 25.6ºC. Calculate the relative error
of the measurement
(a) 7.8×10-4 (b) 0.078125 (c) 0.0078125 (d) 7.8×10-5
6.
How many significant figures does 6.023×1023 have?
(a) One
(b) Two (c) Three (d) Four
7.
From analysis of a compound, the percentage composition
shows that it contains 75.7% carbon, 8.8% hydrogen, 15.5%
oxygen. What is the molar mass?
(a) 210
(b) 215 (c) 206 (d) 205
8.
3RT
(b)
M
3RT
(c)
M
RT
(d)
3M
3nRT
M
3
2
KT
(b) PV 
(c) PV 
1
3
KT
(d) PV  KT
2
3
KT
If the solubility product of Mg(OH)2 is 1.8×10-11 then its
molar solubility in 0.10M MgCl2 is
(a) 1.8×10-4M
(b) 6.7×10-6M
(c) 1.65×10-4M
(d) 2.6×10-4M
14.
What is the solubility of Zinc Phosphate Zn3(PO4)2 if its
solubility product is 9.0×10-33
(a) 3.90×10-7M
(b) 2.46×10-7M
(c) 1.52×10-7M
(d) 2.02×10-7M
15.
Identify the most soluble compound below
(a) BaSO4 (ksp=1.1×10-2)
(b) Ag2SO4 (ksp=1.4×10-5)
-5
(c) PbSO4 (ksp=1.6×10 )
(d) SrSO4 (ksp=3.2×10-7)
16.
For the reaction
PCl5( g )  PCL3( g )  Cl2( g ) : if the
17.
Which of the following is unsuitable as stationary phase in
column chromatography?
(a) silica (b) silica gel (c) alumina (d) bauxite
18.
The pH of a buffer solution containing 0.405M HCOOH and
0.326M HCOONa is
[Ka = 1.8×10-4]
(a) 3.65
(b) 3.74 (c) 3.83 (d) 3.64
19.
What is the pKb of pyridine if Ka of its conjugate acid is
1.5×10-9
(a) 8.82
(b) 1.5×10-9 (c) 6.9×10-6
(d) 5.16
Calculate the temperature at which the root mean square
The data below applies to questions 20-22.
For reaction 2A + B → C + D; the following data was obtained
[A]/m
[B]/m
initial rate/ms-1
0.22
0.16
6.1×10-4
0.44
0.16
1.2×10-3
0.44
0.32
2.4×10-3
0.22
0.32
1.2×10-3
[R=8.314JK-1mol-1,
(a) 40K
11.
(a) PV 
equilibrium quantities of PCl5(g), PCl3(g) and Cl2(g) are 0.562g,
1.950g and 1.007g respectively.
[P = 31, Cl = 35.5]. The value of K for the reaction is
(a) 13.37 (b) 3.49 (c) 0.0286 (d) 0.0748
Crms of ozone (O3) molecules is 1.50×103ms-1.
10.
An equation derived for Boyle’s law from kinetic theory
equation is
13.
The expression for root mean square velocity, C, derived from
ideal gas equation and kinetic equation is
(a)
9.
12.
Saturday 10th March, 2012.
Molar mass of oxygen=16)
(b) 100K
(c) 75K
(d) 50K
A certain volume of gas at 30º heated such that its volume and
pressure are now four times the original values. What is the
new temperature?
(a) 120ºC (b) 4848.0K
(c) 4768.0K
(d) 4800.0K
The condition under which gases behave least ideally are
(a) low temperature, low pressure
(b) low temperature, high pressure
(c) high temperature, low pressure
(d) high temperature, high pressure
Mock checks readiness for the real exam.
5
20.
The order with respect to A and B is
(a) 1, 2
(b) 2, 1 (c) 1, 1 (d) 0, 1
21.
The rate law for the reaction is
(a) rate = k [A] [B] (b) rate = k [A] [B]2
(c) rate = k [B]
(d) rate = k [A]2 [B]
22.
Rate constant of the reaction is
Join us for the Revision Classes.
Aje Taiwo Tutor
FSC 102/DCHM101 (Introductory Chemistry)
(a) 8.52 ×10-3
(c) 5.33×10-2
23.
(c) Electron Affinity (d) None of the above
33.
Benzene will undergo
(a) Nucleophilic addition reaction
(b) Electrophilic addition reaction
(c) Electrophilic substitution reaction
(d) Nucleophilic substitution reaction
34.
Which of the following can be used for the isolation,
purification and identification of the constituents of a mixture
(a) Sublimation
(b) Chromatography
(c) Distillation
(d) All of the above
35.
Which of the following is not a mixture
(a) Cement (b) Air (c) Seawater
For the reaction N2 + 3H2 → 2NH3. Which expression
represents the relationship between the rates at which H2 and
N2 are consumed?
(a) 
(c) 
24.
(b) 1.70×10-2
(d) 1.70×10-3
d H 2 
d N 2 

dt
3dt
(b) 
d H 2  d N 2 

dt
3dt
(d) 
Saturday 10th March, 2012.
d H 2 
3d N 2 

dt
dt
d H 2 
d N 2 

dt
dt
Calculate the number of moles of oxygen atoms in 1.64g of
C22H24N2O8.
(a) 3.69×10-3 moles
(b) 3.69 moles
(c) 0.0295 moles
(d) 0.075 moles
(d) Table sugar
36.
Convert the following temperatures 68°F, 5°F, 176°F to
centigrade
(a) 20°C, -15°C, 80°C (b) 25°C, -20°C, 76°C
(c) 12°C, -15°C, 82°C (d) 25°C, -20°C, 76°C
37.
An electric plasma was reported to reach a temperature of
25,600°F, what is the ratio of this temperature to a flame with
a temperature of 3500°C
(a) 10.12 (b) 40.58 (c) 3.84 (d) 6.25
38.
Analysis shows that 20.0mL of conc. HCl of density
1.18g/mL contains 8.36g of HCl. What is the percent by
weight (mass) of HCl in the concentrated acid?
(a) 27.1% HCl
(b) 28.5% HCl
(c) 36.5% HCl
(d) 35.4% HCl
39.
Calculate the percentage of C in Ca(HCO3)2
(a) 17.5% (b) 26.7%
(c) 14.8%
(d) 40.6%
redox equation is balanced, the stoichiometric ratio of the
reactants is
(a) 5:1
(b) 2:3
(c) 2:1
(d) 4:1
40.
A compound contains 93.91% and 6.29% H2. Its molecular
weight is about 130g. What is its molecular formula
(a) C7H20
(b) C9H20
(c) C12H4
(d) C10H8
29.
The oxidation numbers of nitrogen in N2O and N2F
(a) +1 and +2
(b) -2 and +2
(c) +1 and -1
(d) -2 and -3
41.
How many grams of CaCl2 is produced when 14.3g of AgCl
is treated with excess AgNO3?
(Ag = 107, Cl = 35.5, O = 16, Ca = 40)
(a) 9.25g (b) 5.57g (c) 7.5g (d) 4.5g
30.
The number of significant figures that should be reported for
the difference between 235.7631 and 235.57 is
(a) 7
(b) 3
(c) 2
(d) 5
42.
Calculate the mass of HCl in 5ml of concentrated HCl
(Density = 1.1791mL) containing 37.23% HCl by weight
(a) 6.35g (b) 2.22g
(c) 1.37g
(d) 3.50g
43.
What is the molarity of NaOH in a solution with 24.0g NaOH
in 300ml solution?
(a) 6M
(b) 2M (c) 3M (d) 7.5M
44.
How many mL of water must be added to 200ml of 0.065M
HCl to dilute the solution to 0.20M?
(a) 500ml (b) 250ml
(c) 400ml
(d) 650ml
45.
Which of the following is an odd electron molecule
25.
Calculate the mass POBr3 that can be prepared from the
reaction of 2.58g of PBr5 and 8.74g of P2O5 (P=31, Br=80,
O=16)
3PBr5  P2O5  5POBr3
(a) 3.16g
26.
27.
28.
31.
(b) 9.48g
(c) 2.56g
(d) 6.72g
Calculate the number of atoms present in 2.25mg of
potassium (K=39)
(a) 1.35×1020 atoms (b) 2.75×1020 atoms
(c) 3.47×1022 atoms (d) 3.17×1019 atoms
Calculate the volume of 59.4% nitric acid that is required to
prepare 250cm3 of 0.15M HNO3 (Density of HNO3 =
1.65gcm-3)
(a) 2.98dm3 (b) 2.41dm3
(c) 0.65dm3
(d) 1.72dm3
In this redox equation I   CrO4  I 2  Cr 3 when the
The correct value of this expression is
1  10  1  10 
1  10 
 280 4
230
270
(a) 1×10-340
32.
(b) 1×10-200
1
3
(c) 1×10-290
(d) 1×20-180
Which of the following periodic properties increases across
the period but decreases down the group
(a) Atomic radius
(b) Ionization potential
Mock checks readiness for the real exam.
6
Join us for the Revision Classes.
Aje Taiwo Tutor
(a) CO
46.
47.
FSC 102/DCHM101 (Introductory Chemistry)
(b) NO
(c) HBr (d) HI
(d) the molecule is trigonal planar in shape
Which of the following statements is incorrect about
hydrogen bonding?
(a) It occurs when hydrogen is covalently bonded to a highly
electronegative element
(b) It is responsible for the high boiling point of water
(c) It exist in hydrogen containing compounds of oxygen,
fluorine and nitrogen only
(d) It exist in all hydrogen containing compounds
55.
56.
Which group in periodic table form(s) tetrahedral chlorides?
(a) Group II
(b) Group III
(c) Group IV
(d) Group V
49.
Which of the following relationships between the pressure P,
the volume V, and the temperature T, represents an ideal gas
behaviour?
50.
51.
52.
(b) P 
T
V
(c) PT  V
(d) PV 
57.
The molecule BCl3 is considered unstable because
(a) the molecule is an odd electron molecule
(b) it does not exist as a solid
(c) the central atom has an incomplete octet
Mock checks readiness for the real exam.
(b) butanol
(d) 2-methylpropanol
CH3COCH 2 CH 3 2 
1  ?
N /N
(b) Butan-2-one
(d) Pental-2-one
CH 3CH 2CHOHC CH 3 2 is
(a) 1,1 dimethylbutan-2-ol
(c) 2,2, dimethyl butan-2-ol
59.
Increasing
order
of
(b) 2,2 dimethyl pentan-3-ol
(d) Hexan-2-ol
solubility
of
the
following
CHCHCOOH , CHCl2COOOH , CCl3COOH , is
(a) 1>2>3
1
T
60.
(b) 2>1>3
(c) 3>2>1
(d) 2>3>1
The term which described the heat content of a system at
constant volume is
(a) Entropy
(b) Internal energy
(c) Free energy
(d) Enthalpy
61.
The product of the above is
(a) 2methyl butan-2-ene
(c) 5-methyl butan-2-ene
Hydrogen bonding causes
(a) decrease in boiling point
(b) increase in observed molecular weight
(c) decrease in melting point
(d) decrease in observed molecular weight
54.
B H
(a) Butan-2-ol
(c) Pentan-2-ol
A nucleophilic is a species that
(a) attacks the nucleus of an atom
(b) attacks the electron rich centre of an atom
(c) acts as a free radical
(d) is unreactive
Which of the following has a triangular planar shape?
(a) BF3
(b) PF3 (c) IF3 (d) NH3
2 6
CH3CHCH 2 
 ?
(a) propanol
(c) propa-2-nol
Which of the following statements is not true about dispersion
effects?
(a) Dispersion effect are attractive forces between non-polar
molecules
(b) The attraction is strong when molecules are close
together
(c) Dispersion effect is not a permanent one
(d) Dispersion effect provides a good correlation between
molecular weight and boiling point
53.
(b) propylethanoate
(d) propylpropanoate
H 2O2 / OH
58.
48.
CH 3CH 2COO CH 2 2 CH 3
(a) 2, methylethanoate
(c) ethylpropanoate
The intermolecular forces that exist between the molecular of
HCl are
(a) London forces and dipole-dipole attraction
(b) hydrogen bonding and London forces
(c) Hydrogen bonding, dipole-dipole attraction
(d) Dispersion force
(a) P VT
Saturday 10th March, 2012.
7
(b) 2-methyl hexan-3-ene
(d) 3-methyl hexan-3-ene
62.
Diagonal relationship is described by all but
(a) Li and Mg
(b) Be and Al
(c) C and O
(d) B and Si
63.
Which of the following gas laws consider the chemical
properties of gases
(a) Gay Lussac’s
(b) Graham
(c) Charles
(d) Boyle’s
64.
The total pressure on a container containing 2.0moles of
helium, 3.0moles of Nitrogen and 1.0 of CO2 is 18atm. The
mole fraction of helium and partial pressure of Nitrogen are
respectively
(a)
2
6
moles, 8atm
(c)
2
6
moles and 9atm (d)
(b)
1
6
2
6
moles and 6atm
moles and 3atm
Join us for the Revision Classes.
Aje Taiwo Tutor
FSC 102/DCHM101 (Introductory Chemistry)
65.
Which has the highest number of unpaired electron
(a) N
(b) C
(c) O
(d) F
66.
S  O2  SO2
(c) ln A1   ln A0   kt
H   xkg
For a spontaneous reaction,
(a) ∆H > T∆S
(b) T∆S > ∆H
(c) ∆G is positive
(d) None
68.
The entropy of a perfect crystal is zero at absolute zero of
temperature is a statement of
(a) 1st law of thermodynamics
(b) 2nd law of thermodynamics
(c) 3rd law of thermodynamics
(d) 4th law of thermodynamics
69.
Half life for the first order decomposition of naramide is
123mins at 15°C. How long would it take for a sample to be
85% decomposed?
(a) 1.85min
(b) 2.09min
(c) 3.69min (d) 3.37min
77.
When 0.05mol of CaCO3 is heated in air, it decomposes to
CaO and CO2. If 8.90kJ of heat is absorbed, what will be the
enthalpy change when 1mol of CaCO3 decomposes
(a) 4.45kJmol-1
(b) 17.8kJmol-1
-1
(c) 44.5kJmol
(d) 178kJmol-1
78.
Use the following equation to determine the enthalpy change
∆H for the reaction
2 NO2  N 2 O4
Calcium nitrate reacts with anhydrous chloride at slightly
elevated temperature
72.
73.
Oxidization number of phosphorus in NaH2PO4 is
(a) -2
(b) +1
(c) +5
(d) -3
75.
(c) 42.4kJ
(d) -24.0kJ
80.
The combustion of thiopene C4H4S is represented by equation
H  2523 kJ
81.
If the heat released when 1.00g of calcium (Ca) reacts with
1.00g of hydrogen (H2) to give calcium hydride (CaH2) is
4.28kJ. The reaction enthalpy for the formation of one mole
of CaH2 is
(a) 199.2kJ
(b) 9.96kJ
(c) 179.8kJ
(d) 206.6kJ
82.
The standard state of a substance is the
(a) pure form
(b) most stable format 25°C and 1atm
(c) most stable form at 0°C and 1atm
(d) pure gaseous form at 25°C and 1atm
83.
Identify the factor that influences the value of the equilibrium
constant for a reversible reaction
(a) catalyst
(b) temperature
(c) pressure
(d) concentration of products
84.
Which set of quantum numbers correspond to a 3p orbital?
(a) n=3, l=2
(b) n=3, 1=3 (c) n=3, 1=0
(d) n=3, l=1
For the reaction CO( g )  Cl 2( g )  COCl2( g )
In reaction A  2B  C  3D ; the rate of reaction of B is
found to be 6.2×10-4ms-1, the rate of reaction of A is
(a) 6.2×10-4ms-1
(b) 9.2×10-4ms-1
-4
-1
(c) 3.4×10 ms
(d) 1.6×10-4ms-1
Which equation below represents the integrated rate law for a
first order reaction?
(b) A1   A0   kt
Mock checks readiness for the real exam.
(b) 24.0kJ
Determine the enthalpy of formation of C4H4S if ∆Hf CO2,
H2O(g) and SO2(g) are -393.5, -285.8 and -296.8kJmol-1
respectively
(a) 80.6kJmol-1
(b) 377.1kJmol-1
(c) -377.1kJmol-1
(d) -80.6kJmol-1
At s.t.p., 1.50L of a gas weighed 4.75g. The gas is (H = 1, N =
14, F = 19)
(a) HNF3
(b) NF3
(c) N2H
(d) NH3
1
1

 kt
A1  A0 
H  33 .2kJ
How much heat in kJ is required to raise the temperature of
120g of ethanol from -10.5°C to 44.5°C
[S.H.C of ethanol = 2.465g-1°C-1]
(a) 1.92kJ
(b) 16.2kJ
(c) 1.62kJ
(d) 1623kJ
Calculate the volume of 0.54M NaCl (saline solution)
required from the dilution of 100ml of a 6.0M NaCl solution
(Na = 23, Cl = 35.5)
(a) 1.1L
(b) 910mL
(c) 1.9L
(d) 40mL
(a)
N 2( g )  2O2  2 NO2
C4 H 4 S (l )  6O2  4CO2( g )  2H 2 O(l )  SO2( g )
KC = 1.2NO2 at 395°C. If a reaction mixture at 395° is found
to contain [CO] = 1.5M; [Cl2] = 2.0M and [COCl2] = 1.0M,
the reaction is
(a) yet to attain equilibrium
(b) past equilibrium
(c) at equilibrium
(d) cannot be evaluated
74.
H  9.2kJ
79.
Calculate the volume of N2O produces at 2.00mol sample of
the reacts at s.t.p.
(a) 11.2L
(b) 22.4L
(c) 33.6L
(d) 44.8L
71.
N 2( g )  2O2  N 2 O4
(a) 42.4kJ
CaNO3 2  2 NH 4 Cl  2 N 2 O  CaCl 2  4 H 2 O
70.
(d) A0   A1   kt
76.
The heat liberated is
(a) Heat of combustion
(b) Heat of atomisation
(c) Heat of formation (d) Heat of neutralization
67.
Saturday 10th March, 2012.
8
Join us for the Revision Classes.
Aje Taiwo Tutor
FSC 102/DCHM101 (Introductory Chemistry)
85.
How many sublevels are in the fifth energy level?
(a) 4
(b) 2
(c) 3
(d) 5
86.
Which set of quantum numbers does not correctly describe an
orbital in an atom
(a) n = 2, l = 1, m = - 1
(b) n = 7, l = 3, m = -3
(c) n = -1, l = 1, m = +1
(d) n = 2, l = 0, m = 0
87.
Arrange the following orbitals in order of decreasing energy:
3d, 4d, 4s, 5p, 4f
(a) 5p > 4f > 4p > 4s > 3d
(b) 4f > 4d > 5p > 3d > 4s
(c) 4f > 5p > 4d > 3d > 4s
(d) 4s > 3d > 4d > 4s > 4f
88.
The [OH-} if a solution with pH 11.13 is
(a) 1.35×10-3m
(b) 7.41×10-3m
(c) 2.87m
(d) 7.41×102m
89.
The derived unit of pressure is SI unit is
(a) gcm-1s-1 (b) gm-1s-2
(c) kgcm-1s-2
(d) kgm-1s-2
90.
91.
92.
93.
94.
Saturday 10th March, 2012.
98.
The following are alkane reactions except
(a) substitution with bromine
(b) oxidation with oxygen
(c) addition with chlorine
(d) reaction with radical chlorine
99.
Which of the following pairs can undergo polymerisation
(a) Alkane and alkene
(b) alkane and alkyne
(c) Alkane and alkyne
(d) alkyne and benzene
100.
Which can exhibit two functional groups
(a) C3H13OH
(b) C2H6O (c) C6H6
101.
Dehydration of alcohol with H2SO4 in presence of heat will
give?
(a) Alkanone
(b) Alkene
(c) Alkyne
(d) Alkyne
102.
CH 3 CH 2 CH 2 COOH liAlH
4  ?
(a) Butanal
Express in scientific notation:
-0.00042, 0.1603×1010,
19758
(a) 4.2×10-4, 1.603×10-4, 1.9758×104
(b) -4.2×10-4, 1.603×109, 1.9758×104
(c) -4.2×10-4, 1.603×1010, 1.9758×104
(d) 4.2×10-4, 1.603×109, 1.9758×104
(b) Butenone
(c) Butane
(d) Butanol
103.
The rule in assigning electrons into degenerate orbitals is
(a) Anyban rule
(b) Hund’s rule of maximum multiplicity
(c) Pauli’s exclusive principle
(d) All of the above
104.
Cyclohexanol
Which of the following have the same number of significant
figures
(1) 3,650,000
(2) 365×103
(c) 3.65×10-3
(a) 1 and 2
(b) 1, 2 and 3
(c) 1 and 3
(d) 2 and 3
Calculate the following and report in scientific notation with
the correct number of significant figures
0.0076 ÷ 24.6 (0.000064)
(a) 0.009 (b) 9.2 ×10-3 (c) 0.92×10-4 (d) 0.092×10-5
(d) C6H12
105.
How many significant figures are in 320.00L
(a) 3
(b) 2
(c) 4
(d) 5
When converted to appropriate units, -253°C to K, 235K to
°C, -40°C to F, the temperatures are
(a) 20K, -38°C, -40°F (b) 28K, -25°C, -17°F
(c) 102K, -76°C, -5°F (d) 102K, -76°C, -25°F
(a)
(b)
(c)
(d)
Which is acidic
(a)
(b)
(c)
(d)
106.
95.
Which of the following can lower activation energy of a
reaction?
(a) adding reactants
(b) lowering temperature
(c) raising temperature
(d) adding catalyst
96.
All contributed to determining atomic structure except
(a) Thompson
(b) Dalton (c) Geiger (d) Becquerel
97.
Which is not an SI unit
(a) meter (b) kilogram
(a) 6-bromo, 4-fluoro, 3-methyl hexane
(b) 3-bromo, 1-fluoro, 4 methylhexene
(c) 4-bromo, 3-fluoro, 5-methyl hexane
(d) 4-bromo, 6-fluoro, 3-methyl hexene
107.
(c) kilocallorie
Mock checks readiness for the real exam.
(d) pascal
9
The compound that is aromatic must obey
(a) Hund’s rule
(b) Huckel’s rule
(c) Marckownikoff’s rule
(d) Thumb’s rule
Join us for the Revision Classes.
Aje Taiwo Tutor
FSC 102/DCHM101 (Introductory Chemistry)
Saturday 10th March, 2012.
(d) 6, 7, 8-trimethyl-3-nonene
108.
109.
110.
Which reagent used to identify class of an alcohol
(a) Lucas reagent
(b) Tollen’s reagent
(c) Brady’s reagent
(d) Master reagent
In order to prepare primary alcohol using Grignard reagent,
what type of carbonyl compound will you use?
(a) substituted alkanone
(b) unsubstituted alkanone
(c) substituted alkanal
(d) unsubstituted alkanal
The following are properties of benzene except
(a) It undergoes addition
(b) It has only one monosubstituted product
(c) It undergoes substitution reaction
(d) has high stabilization energy
114.
B=
(a) 1 – methyl-2-ethyl cyclopentane
(b) 1-ethyl-2-methyl cyclopentane
(c) 1-ethyl-2-methyl-cyclopentane
(d) 1-methyl-2-ethylbenzene
115.
C=
(a) 1-propyl-1-benzyl methanol
(b) 1-phenylpropanol
(c) 4-phenyl-butan-4-ol
(d) 1-phenyl-butanol
116.
(a) 5-bromo-2-hexenoic acid
(b) 5-bromohexenoic acid
(c) 2-bromo-2-hexenoic acid
(d) 5-bromo-2-hexanoic acid
Consider this for questions 111-112.
111.
112.
Indicate the hybridization of the carbon labeled b and c
respectively
(a) sp3, sp (b) sp2, sp3
(c) sp2, sp2
(d) sp2, sp
GIVE IUPAC NAMES FOR A – C
Which has highest pKa value
(a) HCOOH
(b) F – CH2 – CH2COOH
(c) CH3CH2COOH
(d) NO3 – CH2COOH
118.
Alkenes are more reactive than alkanes because
i. presence of double bond in the molecule
ii. the carbon-carbon double bond is electron rich
iii. readily react with electrophiles
iv. readily react with nucleophiles
(a) i, iv
(b) ii, iv (c) i, ii, iii
(d) iii, iv
119.
The following is true of alkene and alkyne except
(a) both undergo addition reaction
(b) both can be oxidized by KMnO4
(c) both have acidic hydrogen
(d) both give alkane on reduction
120.
What is the major product formed when 1-methyl
cyclohexane is subjected to hydration under acidic condition?
(a) benzene
(b) 1-methyl cyclohexanole
(c) 2-methyl cyclohexanol
(d) 1-methyl benzene
B.
C.
113.
117.
What is bond overlap in i and ii respectively
(a) sp2 – sp3 and sp2 – sp2
(b) sp2 – sp3 and sp – sp2
(c) sp3 – sp3 and sp2 – sp2
(d) sp – sp3 and sp2 – sp2
A.
A=
(a) 1, 2, 3-trimethyl-6-nonane
(b) 1, 2, 3-trimethyl, 6-nonene
(c) 5, 6, 7-trimethyl-3-octene
Mock checks readiness for the real exam.
The name of CH 3 CH Br CH 2 CH  CHCOOH is
10
Join us for the Revision Classes.
Download