2. SECTION – I
Single Correct Answer Type
There are five parts in this question. Four choices are given for each part and one of them is
correct. Indicate you choice of the correct answer for each part in your answer-book by
writing the letter (a), (b), (c) or (d) whichever is appropriate
3. 01 Problem
The lightest particle is :
α -particle
positron
proton
neutron
4. 02 Problem
In a gaseous reversible reaction N2 + O2 2NO + heat If pressure is increased
then equilibrium constant would be :
a. Unchanged
b. Increased
c. Decreased
d. Sometimes of any atom or ion containing one electron only The spectrum of
hydrogen atom only
5. 03 Problem
Bohar model can explain :
a. the solar spectrum
b. the spectrum of the hydrogen molecule
c. spectrum of any atom or ion containing one electron only
d. the spectrum of hydrogen atom only
6. 04 Problem
Gamma rays have :
a. No mass and no charge
b. Mass only
c. Charge only
d. Mass and charge both
7. 05 Problem
Zeeman effect refers to the :
a. Splitting up of the lines in an emission spectrum in the presence of an
external electrostatic field
b. Random scattering of light by colloidal particles
c. Splitting up of the lines in an emission spectrum
d. Emission of electrons from metals when light falls upon them
8. 06 Problem
Correct gas equation is :
P1T1 P2T2
a. V V2
1
V1T2 V2T1
b.
P1 P2
P1V1 T1
c.
P2V2 T2
V1V2
d. P1P2
T1T2
9. 07 Problem
Which combinations of quantum numbers, n, l, m and s for the electron in an
atom does not provide a permissible solution of the wave equation ?
1
a. 3, 2, 1,
2
1
b. 3, 1, 1, - 2
c. 3, 3, 1, - 1
2
d. 3, 2, -2 , 1
2
10. 08 Problem
Ca2+ is isoelectronic with :
a. Na+
b. Ar
c. Mg2+
d. Kr
11. 09 Problem
Which element is used for making a transistor ?
a. Sn
b. Sb
c. Si
d. Mg
12. 10 Problem
The rate constant for a first order reaction whose half-life, is 480 s is :
a. 2.88 x 10-3 s-1
b. 2.72 x 103 s-1
c. 1. 44 x 10-3 s-1
d. 1. 44 s-1
13. 11 Problem
For the following homogeneous reaction, the unit of rate constant is :
k
A B C
a. mol-1 L s-1
b. s-1
c. s
d. s-1 mol L-1
14. 12 Problem
A sample of rock from moon contains equal number of atoms of uranium and
lead. t1/2 for U = 4.5 x 109 yr. The age of the rock would be :
a. 2.25 x 109 yr
b. 13.5 x 109 yr
c. 9.0 x 109 yr
d. 4.5 x 109 yr
15. 13 Problem
The half-life period of a radioactive material is 15 min. What per cent of
radioactivity of that material will remain after 45 min ?
a. 17.5%
b. 15 %
c. 12.5%
d. 10%
16. 14 Problem
In terms of energy 1 amu is equal to :
a. 100 J
b. 931.1 kcal
c. 931.1 MeV
d. 107 erg
17. 15 Problem
A biological catalyst is :
a. The N2 molecule
b. An enzyme
c. An amino acid
d. A carbohydrate
18. 16 Problem
The action of enzymes in living system is to :
a. Supply energy to tissues
b. Create immunity
c. Circulate oxygen
d. Enhance the rate of biochemical reactions
19. 17 Problem
Amongst the following, the molecule that is linear is :
a. SO2
b. CO2
c. ClO2
d. NO2
20. 18 Problem
The hydrogen bond is strongest is :
a. F – H …….. O
b. F – H …….. F
c. S – H …….. S
d. O – H …….. O
21. 19 Problem
Dipole moment is shown by :
a. cis-1, 2-dichloro ethane
b. trans-1, 2-dichloro ethane
c. trans-1, 2-dichloro-2-pentene
d. both (a) and (c)
22. 20 Problem
The compound 1, 2-butadiene has :
a. sp, sp2 and sp3 – hydridised carbon atoms
b. only sp2-hybridised carbon atoms
c. only sp-hybridised carbon atoms
d. both sp and sp2-hybridised carbon atoms
23. 21 Problem
The C – H bond distance is the longest in :
a. C2H6
b. C2H2
c. C2H2Br2
d. C2H4
24. 22 Problem
Which one of the following solutions has the highest B.P. ?
a. 0.1 M NaCl
b. 0.1 M urea
c. 0.1 M BaCl2
d. 0.1 M glucose
25. 23 Problem
The freezing point of 1% solution of lead nitrate in water will be :
a. 20C
b. 10C
c. 00C
d. below 00C
26. 24 Problem
The amount of urea to be dissolved in 500 cc of water (k = 1.860 C) to produce a
depression of 0.1860 C in the freezing point in :
a. 9 g
b. 6 g
c. 3 g
d. 0.3 g
27. 25 Problem
The solubility of AgI in NaI solution is less than that in pure water because :
a. The temperature of the solution decreases
b. Solubility product of AgI is less than that of NaI
c. Of common ion effect
d. AgI forms complex with NaI
28. 26 Problem
Which is chemically most active non-metal ?
a. S
b. O2
c. F2
d. N2
29. 27 Problem
Which one of the given transition metal ions is diamagnetic ?
a. Cu2+
b. Co2+
c. Cr3+
d. Zn2+
30. 28 Problem
Which of the following isoelectronic species has the largest size ?
a. Na+
b. O2-
c. N3-
d. F-
31. 29 Problem
Molecular formula of Glauber’s salt is :
a. Na2SO4 . 10H2O
b. FeSO4 . 7H2O
c. CuSO4 . 5H2O
d. MgSO4 . 7H2O
32. 30 Problem
Cyanide process is used for the extraction of :
a. Au
b. Ag
c. Cu
d. Both (a) and (b)
33. 31 Problem
Which of the following metal is correctly matched with its ore ?
Metal Ore
a. Zinc Calamine
b. Silver Ilmenite
c. Magnesium Cassiterite
d. Tin Azurite
34. 32 Problem
An example of a Lewis acid is :
a. MgCl2
b. SnCl4
c. AlCl3
d. NaCl
35. 33 Problem
Which solution has pH equal to 10 ?
a. 10-4 M KOH
b. 10-10 M KOH
c. 10-10 M HCl
d. 10-4 M HCl
36. 34 Problem
Solubility product of BaCl2 is 4 x 10-9 mol/L. Its solubility would be :
a. 1 x 10-27
b. 1 x 10-3
c. 1 x 10-7
d. 1 x 10-2
37. 35 Problem
Molecular orbital theory was given by :
a. Kossel
b. Mosley
c. Mulliken
d. Werner
38. 36 Problem
In methane the bond angle is :
a. 1800
b. 900
c. 1090
d. 1200
39. 37 Problem
Oxidation number of ‘N’ in N3H (hydrazoic acid) is :
1
a. - 3
b. + 3
c. 0
d. - 3
40. 38 Problem
Phosphorus has the oxidation state of +3 in :
a. Phosphorous acid
b. Pyrophosphoric acid
c. Orthophosphoric acid
d. Metaphosphoric acid
41. 39 Problem
Which of the following has highest pH ?
a. M KOH
4
M
b. NaOH
4
c. M NH4OH
4
M
d. Ca(OH)2
4
42. 40 Problem
The heat of neutralization of HCl by NaOH is – 55.9 kJ/mol, the energy of
dissociation of HCN is :
a. 43.8 kJ
b. -43.8 kJ
c. -68 kJ
d. 68 kJ
43. 41 Problem
Bronze is an alloy of :
a. Pb + Sn + Zn
b. Cu + Sn
c. Pb + Zn
d. Cu + Zn
44. 42 Problem
In photography we use :
a. AgI
b. NH3
c. AgCl
d. AgBr
45. 43 Problem
The treatement of Cu with dilute HNO3 gives :
a. N2O
b. NO
c. NH4+
d. NO2
46. 44 Problem
A mixture of camphor and benzoic acid can be separated by :
a. Sublimation
b. Extraction with a solvent
c. Chemical method
d. Fractional crystallization
47. 45 Problem
The empirical formula of a compound is CH2. One mole of this compound has a
mass of 42 g. It molecular formula is :
a. C3H6
b. C3H8
c. CH2
d. C2H2
48. 46 Problem
How many isomers are possible for the alkane C4H10 ?
a. 3
b. 5
c. 2
d. 4
49. 47 Problem
Geometircal isomerism is possible in case of :
a. pentene – 2
b. propane
c. pentane
d. ethane
50. 48 Problem
The Wrong IUPAC name of the compound CH3CHOH. CH2CH3 is : ?
a. Butan-2-ol
b. 2-butanol
c. Butanol-2
d. 1-,ethylopropanol-1
51. 49 Problem
The number of isomers of the compound with molecular formula C2H2Br2 is :
a. 4
b. 3
c. 5
d. 2
52. 50 Problem
The number of ether isomers possible for C4H10O are :
a. 2
b. 5
c. 4
d. 3
53. 51 Problem
Keto-enol tautomerism is observed in :
a.
b.
c.
d. Both (a) and (b)
54. 52 Problem
Which of the following compounds will show geometrical isomerism ?
a. 1-phenyl propene
b. Propene
c. 2-methyl-2-butene
d. 2-butene
55. 53 Problem
The number of primary amines of formula C4H11N is :
a. 1
b. 3
c. 4
d. 2
56. 54 Problem
Lyophobic colloids are :
a. gun proteins
b. protective colloids
c. irreversible colloids
d. reversible colloids
57. 55 Problem
White vitriol has the formula :
a. CaSO4 . 2H2O
b. CuSO4 . 5H2O
c. ZnSO4 . 7H2O
d. FeSO4. 7H2O
58. 56 Problem
The decomposition temperature is maximum for :
a. MgCO3
b. SrCO3
c. CaCO3
d. BaCO3
59. 57 Problem
What is the molarity of 0.2 N Na2CO3 solution ?
a. 0.05 M
b. 0.4 M
c. 0.1 M
d. 0.2 M
60. 58 Problem
The strength of 10 cc of “10 volume” solution of H2O2 in terms of normality is :
a. 6.8 N
b. 1.7857 N
c. 4.4 N
d. 30.35 N
61. 59 Problem
Zeolite which shows ion exchanging ability :
a. can provide H+ in place of Na+ ions
b. is a sodium aluminosilicate
c. is an ion-exchange resin
d. is a close-packed assemblance of silicon and oxygen atoms
62. 60 Problem
Which of the following is an electrophile ?
a. Lewis acid
b. Lewis base
c. Negative species
d. None of the above
63. 61 Problem
Strongest acid is :
a. 2, 4, 6-trinitro phenol
b. ethanol
c. ether
d. phenol
64. 62 Problem
Which one of the following species is isoelectronic with ammonia ?
a. C H2
b. C H2
c. C H3
d. CH2
65. 63 Problem
The addition of HBr is easiest with :
a. (CH3)2C = CH2
b. CH3 – CH = CH2
c. ClCH = CHCl
d. CH2 = CH – Cl
66. 64 Problem
Dry ice is :
a. Solid ice
b. Solid CO2
c. Solid NH2
d. Solid CH4
67. 65 Problem
When potassium ferrocyandie crystals are heated with conc. Sulphuric acid, the
gas evolved is :
a. Sulphur dioxide
b. Ammonia
c. Carbon monoxide
d. Carbondioxide
68. 66 Problem
Potassium cyanide is obtained from :
a. K4[Fe(CN)6]
b. K3[Fe(CN)6]
c. K3[Fe(CN)4]
d. None of the above
69. 67 Problem
Ammonia on reaction with hypochlorite anion can form :
a. NO
b. N2H4
c. NH4Cl
d. Both a and c
70. 68 Problem
On heating sodium acetate with sodium hydroxide, the gas evolved will be :
a. Ethylene
b. Methane
c. Acetylene
d. Ethane
71. 69 Problem
Calcium carbide when treated with water gives :
a. Ethylene
b. Methane
c. Acetylene
d. Ethane
72. 70 Problem
Natural gas is a mixture of :
a. CH4 + C2H6 + C3H8
b. CO + H2 + CH4
c. CO + H2
d. H2O + CO2
73. 71 Problem
At 1300C, normal butane reacts with bromine, the product will be :
a.
b.
c.
d. All of the above
74. 72 Problem
HOCl reacts on 3-methyl-2-pentene, the main product will be :
a.
b.
c.
d. None of the above
75. 73 Problem
An alkyne has the general formula :
a. CnH2n
b. CnH2n+1
c. CnH2n+2
d. CnH2n-2
76. 74 Problem
In the reaction CH3 C C Na (CH3 )2 CH Cl ? The product formed is :
a. Propene
b. Propyne
c. Propyne and propene
d. 4-methyl pentyen-2
77. 75 Problem
Which of the following metal ions is not coloured ?
a. Ti3+
b. Fe3+
c. V2+
d. Cu+
78. 76 Problem
Which has maximum paramagnetic nature ?
a. [Mn(H2O)6]2+
b. [Cu(NH3)4]2+
c. [Fe(CN)6]4-
d. [Cu(H2O)4]2+
79. 77 Problem
Lucas test is done to differentiate between :
a. Alcohol and ketone
b. Alcohol and aromatic ketones
c. 10, 20 and 30 alcohols
d. none of that above
80. 78 Problem
Phenol is more acidic than alcohol. Why ?
a. Phenol is more stable than water
b. Phenol is aromatic and alcohol is aliphatic
c. phenol is resonance stabilized
d. None of the above
81. 79 Problem
Aldehyde and ketones are distinguished by which of the following test ?
a. Lucas test
b. Tollen’s test
c. KMnO4 solution (Baryer’s test)
d. None of the above
82. 80 Problem
Aldehydes and ketones are generally reduced by :
a. Clemmensen reduction
b. H2S
c. H2/Ni
d. None of the above
83. 81 Problem
Which one gives positive iodoform test ?
a. (CH3)2CHCH2OH
b. C6H5-OH
c.
d. CH3CH2OH
84. 82 Problem
What is the meaning of o/p directing group ?
a. A group which increases the electron density at m-position
b. No reaction occur at o/p position
c. A group which increases the electron density at o/p positions when attached
to benzene ring and direct the electrophile to this site
d. None of the above
85. 83 Problem
CH3COOH A CH3COCl. What is A ?
a. PCl5
b. Cl2
c. HCl
d. COCl
86. 84 Problem
Cyclohexene on reaction with cold alkaline KMnO4 form :
a. trans-hexanediol
b. hexadiketone
c. cis-hexanediol
d. none of these
87. 85 Problem
CH3 – CH = CH – CH3 on ozonolysis give :
a. O2
b. CH3 – CH2 – OH
c. CH3 – CO – CH3
d. CH3 – CHO
88. 86 Problem
Which is monosaccharide ?
a. Sucrose
b. Lactose
c. Fructose
d. None of these
89. 87 Problem
In which reaction C = O can be reduced to CH2 ?
a. Wolff-Kishner reaction
b. Reimer-Tiemann reaction
c. Wurtz reaction
d. None of the above
90. 88 Problem
Phenol on reaction with Zn dust from :
a. ZnO + benzene
b. Toluene
c. Benzaldehyde
d. Benzoic acid
91. 89 Problem
Phenol on reaction with chloroform and aqueous KOH form a major product :
a.
b.
c.
d.
92. 90 Problem
Resonance energy of benzene represents :
a. Stability of benzene
b. Energy required to break C – C bond
c. Energy required to break C – H bond
d. Energy for
93. 91 Problem
Two structures of cyclohexatriene given by Kekule represent :
a. An equilibrium mixture of two cyclohexatriene
b. An equal mixture of two isomer
c. A structure which has some resemblence with benzene structure
d. None of the above
94. 92 Problem
In Ni(CO)4 Oxidation number of Ni is :
a. 4
b. -4
c. 0
d. + 2
95. 93 Problem
Ethyl acetate on reaction whit Grignard’s reagent, forms :
a. Alcohol
b. Ketone
c. Methane
d. Ethane
96. 94 Problem
LPG mainly contains :
a. ethyne
b. butane
c. Methane
d. Ethane
97. 95 Problem
K4[Fe(CN)6] is a :
a. Doublet salt
b. Complex compound
c. Acid
d. Base
98. 96 Problem
Write the following in decreasing order towards electrophilic substitution
reaction :
(i) benzene
(ii) Chlorobenzene
(iii) nitrobenzene
(iv) toluene
a. i > ii > iii > iv
b. iv > i > ii > iii
c. ii > iii > iv > i
d. ii > i > iv > iii
99. 97 Problem
IUPAC name of CH3 – CH = CH – C CH is :
a. pent –2-ene –4-yne
b. pent-1-yne-3-ene
c. pent-3-ene-1-yne
d. none of the above
100. 98 Problem
name of the following compound is :
a. 2-ethyl butanol-2
b. 1-ethyl, 1-mehtyl propanol-1
c. 3-methyl pentanol-3
d. diethyl ethanol
101. 99 Problem
Number of unpaired electron in Ni2+ (28) is :
a. 4
b. 2
c. 6
d. 8
102. 100 Problem
Which of the following have polyamide structure ?
a. Bakelite
b. Nylon-6,6
c. PVC
d. None of these
