HIGHER SECONDARY SCHOOL Model Test- One Mark Test –Chemistry 2
Full Portion Time: 1 hr SUB:
Chemistry Marks: 300
1. De Broglie equation is
a) λ = mv/n b) λ = h/mv c) λ = n/p d) both b and c
Answer: b
2. If the energy of an
electron in the second Bohr orbit of H atom is -E. What is the energy of the
electron in the Bohr’s first orbit?
a) 2E b)
-2E c) -4E d) 4E
Answer: c
3. The
hybridisation of XeF6 is
a) sp3d3 b) sp3 c) sp3d d) sp3
Answer: a
4. The energy of electron at infinity is
assumed
a) zero b)
1 c) >1 d) <1
Answer: a
5. A
vehicle is moving with a momentum of 6.6x10-4 Kgms-1.
Then its wave length is nearly
a) 10-2m b) 10-30m c) infinity d) 10-38
Answer: b
6. The
dual nature of electron was verified by
a) Milliken oil drop experiment b) Rutherford experiment
c) Einstein equation d)
Davisson and Germer experiment
Answer: b
7. Which
of the following has greater bond dissoation energy?
a) H2 b) O2 c) N2 d) Cl2
Answer: c
8. Among
the following which has higher electron affinity
a) fluorine b) chlorine c)
bromine d) iodine
Answer: b
9. The
electronegativity of hydrogen assumed by Pauling is
a) 1.1 b)
1.7 c) 2.1 d) 2.7
Answer: c
10. The
metal which has high electron affinity is
a) silver b) gold c) zinc d) copper
Answer: b
11. Which is also called brim stone?
a) sulphur b) selenium c)
silicon d) phosphorus
Answer: a
12. Which is used as a flux in metallurgy?
a) UF6 b) SF6 c) CaF2 d) NaF
Answer: c
13. Among the halogens the strongest oxidising agent is
a) l2 b) Br2 c) Cl2 d) F2
Answer: d
14. Which of the following does not belong to group 14?
a) C b) Si c)
Ga d) Pb
Answer: c
15. The general electronic configuration of d block element is
a) (n-1)d1-10 ns1-2 b) (n-1)d1-5ns2 c) (n-1)d10 ns1 d) none of the these
Answer: a
16. Aqua regia is 3:1 ratio of
a) conc. HCI and conc HNO3 b) con. HNO3
and Con HCl
c) con H2SO4
and Con HCl d)
con. H2SO4 and con HNO3
Answer: a
17. Blue vitriol is
a) FeSO4.7H2O b) CuSO4.5H2O c) ZnCO3.7H2O d) AgNO3
Answer: b
18. The electrolyte used in chrome plating is
a) CrO3 + HCI b)
Cr2O3 + HCI
c) chromic acid +
nitric acid d)
chromic acid + sulphuric acid
Answer: d
19. Which of the following is not attacked by alkali?
a) copper b) zinc c)
silver d) both a and
c
Answer: d
20. Ruby silver is
a) Ag2S b) Ag2Sb2S3 c) AgCl d) AgNO3
Answer: b
21. K2Cr2O7 reacts with Kl and
dilute sulphuric acid and liberates
a) O2 b) l2 c) H2 d) SO2
Answer: b
22. Lanthanides are extracted from
a) limonite b) magnetite c) monazite d) cassiterite
Answer: c
23. ________ form oxo cations
a) lanthanides b) actinides c) noble gases d) alkali metals
Answer: b
24. The colour of U4+ is
a) yellow b) red c)
blue d) green
Answer: d
25. Lanthanides are used in metallo thermic reaction because of
their
a) extra ordinary oxidising
property b) similar size
c) extra ordinary
reducing property d) similar
electronic configuration
Answer: c
26. The existence of actinides series similar lanthanide series was
proposed by
a) Mendeleev b) John Dalton c) Wemer d) Niels Bohr
Answer: a
27. Among the lanthanides
with the increase in atomic number the tendency to act as reducing agent
a) increases b) decreases c)
no change d) none of these
Answer: b
28. An example of an
ambidentate ligand is
a) NO2 b)
H2O c)
CN d) both a and
c
Answer: a
29. In [Fe (CN)6]3-
the central metal atom / ion is
a) Fe b)
Fe2+ c)
Fe3+ d) CN-
Answer: c
30. An anti tumour drug
is
a) Al (oxine)3 b)
trans [pt(NH3)2Cl2]
c) Cis [pt (NH3)2
Cl2] d)
K4[Fe(CN)6]
Answer: c
31. The no of water
molecules present in mohrs salt is
a) 6 b)
10 c) 12 d) 24
Answer: a
32. Loss of β particles
is equivalent to
a) increase of one proton only b)
decreases of one neutron only
c) both a and b d)
none of these
Answer: c
33. Radiation with very
short wavelength and very high energy is
a) α b)
β c) γ d) δ
Answer: c
34. After 24 hours 0.25g
of the initial quantity of 1g of a radioactive isotope is left out.
The half life
period is
a) 24 hours b)
12hours c) 8 hours d) 4 hours
Answer: b
35. The crystal structure of CsCl is
a) SC b) BCC c)
FCC d) ECC
Answer: b
36. The imperfection due to unoccupied lattice points in crystal is
called
a) Frenkel defect b) Schottky defect c) Line defect d)
metal excess defeat
Answer: b
37. Vander Waal’s force is common in
a) covalent crystals b)
metallic crystals
c) molecular
crystals d) ionic crystals
Answer: c
38. Change in Gibbs free energy is given by
a) ΔG = ΔH - T Δ S b)
Δ G = Δ H + T Δ S
c) ΔG = ΔH x T Δ S d)
none of these
Answer: a
39. The enthalpy of
vapourisation of water is 40.85 KJ mol-1. The change in entropy of
the process is
a) 109.5J mol-1k-1 b) 40.85KJ mol-1 c)
109.5KJ mol-1 d) 2.3KJ
mol-1
Answer: a
40. The standard
entropies of all substances at any temperature above 0 K is
a) zero b) positive c)
negative d) both a and b
Answer: b
41. The maximum
efficiency possible from an engine working between 127oc abd 27oc
is
a) 25% b)
100% c) 78.7% d) 67%
Answer: a
42. Which of the following
property can be used to product the feasibility without considering
surroundings?
a) Δ H b)
Δ E c) Δ S d)
Δ G
Answer: d
43. Any process which
takes place on its own accord is called process
a) non spontaneous b)spontaneous c) reversible d)
Isothermal
Answer: b
44. State of chemical
equilibrium is
a) dynamic b)
stationary c) both d) none
Answer: a
45. In a reaction 2O3 ⇌ 3O2
the value of kc is
a) [O3]3 / [O2]2 b)
[O2]2 / [O3]3
c) [O2]3 / [O3]2 d)
[O3] / [O2]
Answer: c
46. In which of the
following equilibrium decrease of pressure favours forward reaction?
a) H2(g) + l2(g) ⇌ 2HI(g) b) 2SO2(g)
+ O2(g) ⇌ 2SO3(g)
c) N2(g) + 3H2(g)
⇌ 2NH3(g) d) N2O4(g) ⇌ 2NO2(g)
Answer: d
47. The yield of H2SO4
in contact process is
a) 37% b)
78% c) 67% d) 97%
Answer: d
48. The catalyst used in
Haber process is
a) Ti b)
Mo c) Fe d) V2O5
Answer: c
49. The unit of kp for
synthesis of ammonia from N2 and H2 is
a) lit mol-2 b)
atm-2 c)
lit atm-1 d)
atm-1
Answer: b
50. For the equilibrium
CO2(g) + H2(g) ⇌ CO(g) + H2O(g)
kc = 0.719 at 1000 K. Then the value of kp is
a) 0.719 b)
0.0719 c) 7.19 d) 0.00719
Answer: a
51. The sum of power of
the concentration terms that occur in the rate equation is called
a) rate b)
rate constant c) order d) molecularity
Answer: c
52. The half life period
of radio active is 30 days. What % of radioactivity have been lost after 120
days?
a) 87.5 b)
75 c) 50 d) 93.75
Answer: d
53. Bromination of bromo
benzene is an example for
a) consecutive reaction b)
parallel reaction
c) opposing reaction d)
equilibrium reaction
Answer: b
54. The activation energy
of a reaction can be lowered by
a) lowering temperature b)
removing products
c) lowering pressure d)
adding a catalyst
Answer: d
55. In the case of
physical adsorption, there is desorption when
a) temperature increases b)
temperature decreases
c) pressure increases d)
concentration increases
Answer: a
56. An example for gel
type of colloid is
a) paint b)
curd c) cloud d) cork
Answer: b
57. The emulsifying agent
used in o/w emulsion is
a) protein b)
heavy metal salts of fatty acids
c) long chains alcohol d) lamp black
Answer: a
58. The sky look blue due
to of light
a) adsorption b)
dispersion c) reflection d) scattering
Answer: d
59. The compound used for
tanning of leather is
a) milk of magnesia b)
colloidal antimony c) chromium salts
d) ferric chloride
Answer: c
60. The platinum catalyst
used in the oxidation of SO2 by contact process in poisoned by
a) As2O3 b)
V2O5 c)
Fe2O3 d)
CuCl2
Answer: a
a) AgCl b) HCl c) FeCl3 d) FeSO4
Answer: c
62. In W/O type emulsion
addition of oil results in
a) dilution of colloid b)
precipitation of colloid
c) formation of separate layer d) purification of colloid
Answer: a
63. The induced catalyst
used in the oxidation of sodium arsenite is
a) sodium chloride b)
sodium sulphite
c) sodium sulphate d) sodium
hydroxide
Answer: b
64. The pH of 0.05N H2SO4
solution is
a) 1 b)
1.3 c) 2 d) 2.3
Answer: a
65. When sodium fluoride
is added to hydro fluoric acid the degree of ionisation
a) decreases b)
increases c) does not change d) becomes zero
Answer: a
66. An example for semi
conductor is
a) benzene b)
alloys c) titanium
dioxide d) CCl4
Answer: c
67. The quantity 1/a is
called
a) cell length b)
cell constant c) cell area d) cell resistance
Answer: b
68. Phenol gives ______ colour with neutral ferric chloride
a) red b) yellow c)
green d) violet
Answer: d
69. Which of the following does not undergo iodoform test?
a) CH3-OH b) C2H5OH c) (CH3)2 CH
- OH d) CH3 - CH2
- CO-CH3
Answer: c
70. Glycerol with oxalic acid at 383 K gives
a) acrolein b) allyl alcohol c) glyceric acid d) glycerol + formic acid
Answer: d
71. The isomerism exhibited by (C2H5)2O
& CH3 - O - CH (CH3)2 is
a) functional b) metamerism c) position d) no isomerism
Answer: b
72. Which of the following does not react with sodium
a) phenol b) alcohol c)
acid d)
ethers
Answer: d
73. The isomerism exhibited by 1 - propanol is methoxy ethane is
a) chain b) position c)
functional d) metamerism
Answer: c
74. Per chloro diethyl ether is obtained by the reaction of diethyl
ether with
a) PCI5 b) SOCI2 c) Cl2 in dark d) Cl2 in light
Answer: d
75. The IUPAC name of phenotole is
a) phenoxy ethane b)
ethoxy benzene
c) ethyl phenyl
ether d)
benzoxy ethane
Answer: b
76. Anisome on bromination gives
a) o and p bromo anisole b) m - bromo
anisole
c) p - bromo
anisole only d)
2, 4, 6 - tri bromo anisole
Answer: a
77. In the absence of a catalyst, benzaldehyde reacts with Cl2
to give
a) chloro benzene b) m
chloro benzaldehyde
c) benzyl chloride d)
benzoyl chloride
Answer: d
78. The reagent which can be used to differentiate acetone and
acetophenone is
a) I2 / NaOH b) Zn - Hg c) HCN d) HNO3 / H2SO4
Answer: d
79. The functional isomer of 2 propene 1 - ol is
a) proanal b) acetone c)
n propyl alcohol d) dimethyl
ether
Answer: b
80. Aldehydes can be prepared from alkenes by
a) ozonolysis b)
acid hydrolysis
c) base hydrolysis d)
reduction
Answer: a
a) Perkins reaction b)
Knoevenegal reaction
c) Claisen reaction d)
Benzoin condensation
Answer: c
82. The reagent used to
convert lactic acid to pyruvic acid is
a) H2O2 / Fe2+ b) H+
/ KMnO4
c) dil H2SO4 d) con H2SO4
Answer: a
83. Which of the following
is used to disinfect bronchial tubes in its vapours form?
a) oxalic acid b)
benzoic acid
c) acetic acid d)
butyric acid
Answer: b
84. Which is called oil of winter green?
a) benzaldehyde b)
nitro benzene
c) salicyclic acid d)
methyl salicylate
Answer: d
a) CH3 - CHO b) CH-CH-COOH c) CH3 - COOH d) CH3 - CH2 - OH
|
OH
Answer: c
86. Nitro benzene on electrolytic reduction in con H2SO4
the product formed is
a) C6H5-NH
NH C6H5 b)
C6H5NHOH
c) C6H5HSO4 d)
HO - C6H4 - NH2
Answer: d
87. The organic compound does not undergo carbyl amine reaction is
a) C2H5NH2
b) (C2H5)2NH c) C6H5NH2 d) both a and c
Answer: b
88. The compound that does not show tautomerism is
a) nitrobenzene b)
nitro methane
c) nitro ethane d)
2 - nitro propane
Answer: a
89. The nitrogen compound used in the preparation of sulpha drugs is
a) methy / amine b)
nitro methane
c) amino benzene d)
nitro benzene
Answer: c
90. The IUPAC name of CH3 - N - CH2 - CH2
- CH3
|
CH3
a) 1 - (N,N dimethyl amino) propane b)
lso butyl dimethyl amine
b) 2 - (N,N - dimethyl amino) butane d)
sec butyl dimethyl amine
Answer: a
a) HO+ / H2O
b)
OH- / H2O c)
H2O2 / NaOH d)
H2O2 / NH3
Answer: c
92. In the mechanism of
Hoffmann (reaction which intermediate rearranges to alkyl isocyanate?
a) bromide b) nitrene c)
nitroso d) amide
Answer: b
93. Aniline forms Schiffs
base with
a) benzyl alcohol b)
benzaldehyde c) benzal chloride d) acetic anhydride
Answer: b
94. Which one of the
following is used in the preparation of poly urethane plastics
a) phenyliso thio cyanate b)
phenyl iso cyanide
c) anthranilic acid d) sulphanalic acid
Answer: b
95. The building block of
proteins are
a) α - hydroxy acids b) α - amino acids
c)
β - hydroxy acids d)
β - amino acids
Answer: b
96. Sucrose contains
glucose and fructose linked by
a) C1 - C1 b)
C1 - C4 c)
C1 - C2 d)
C1 - C6
Answer: c
97. The IUPAC name of
fructose is
a) 1, 3, 4, 5, 6 -penta hydroxy 2 hexanone b) 2, 3, 4, 5, 6 penta hydroxy 1 - hexanone
c) 1, 2, 3, 4, 5, 6 - hexanol d)
1, 3, 4, 5, 6 -penta hydroxy - 2 – hexanal
Answer: a
98. The peptide bond is
a) O b) O c) O d)
O
|| || || ||
-C-OH-
C-H -NH2 - C -C- NH
Answer: d
99. Cephalins have been
implicated in the process of
a) metabolism b)
organization of the body
c) blood purification d) blood
coagulation
Answer: d
100. An example for a
trisaccharide is
a) glucose b)
raffinose c) galactose d) ribose
Answer: b
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