Exam Details
Subject | chemistry | |
Paper | ||
Exam / Course | combined competitive examination | |
Department | ||
Organization | Jammu Kashmir Public Service Commission | |
Position | ||
Exam Date | 2013 | |
City, State | jammu kashmir, |
Question Paper
EIJ-49853-A 1 [Turn over
ROUGH WORK
1. Cerium is a member of
s-block element f-block element
d-block element p-block element
2. The element with electronic configuration 1s2, 2s2 2p6, 3s2 is a/an
Metal Non Metal
Metalloid Inert gas
3. Which of the following has Noble gas configuration
La2+ Ce3+
Ce4+ Eu2+
4. Nobelium with atomic number 102 has the electronic configuration
5f 7 6d7 7s2 5f 10 6d4 7s2
5f 14 6d1 7s1 5f 14 6d0 7s2
5. Elements of the same group are characterised by
Ionization potential
Electron affinity
Same number of electrons in the outer most shell
Electronegativity
6. Zr and Hf have similar atomic and ionic radii because of
Diagonal relationship Lanthanide contraction
Both in the same period Similar chemical properties
7. Which of the given elements has the highest second ionization potential
8. The attraction of an atom for electrons in a bonded molecule is called
Ionization potential Oxidation potential
Electron affinity Electronegativity
9. Deuterium atom is an of hydrogen atom.
Isotope Isobar
Isotone Isomer
10. Complete the reaction scheme
94 12
Be +He . C ......... choosing one of the following
42 6
11
n
10
20
e
1
Ca40
11. An isobar of 20 is
K42
Ar38
19
Ca38 Ar40
18
12. Which of the following complexes is most stable
[M(bipyridine)3(D) [M(pyridine)6
13. Which of the following is non polar covalent molecule
All CO2
CCl4 SiF4
14. The strong forces operating in diamond structure are
Hydrophobic Covalent
Ionic Coordinate Covalent
15. The central atom in H2O molecule undergoes the hybridization
sp sp2
dp2 sp3
16. In regular trigonal bipyramidal structure the bond angles are
180o and 60o 60o and 60o
72o and 90o 120o and 90o
17. The hybridization of Tellurium in TeCl4 molecule is
sp3 sp3d
dsp2 d2sp3
18. The longest C-H bond distance is in the following molecule
CHBr
CH
22 222
26 24
19. Oxidation state of of oxygen is observed in
F2O H2O
OF
(C)H2O2 22
20. In the reduction of Cr2O72- by the number of electrons involved per atom of chromium is
21. The oxidation state of Iron in Fe(CO)5 molecule is
22. During oxidation process electrons are
lost gained
paired up remains same
High temperature
23. BH+ 2 NH ...... gives the product as
26 3
Boron nitrate Borazole
Boric acid Borax
24. Which is the correct order of decreasing acid strength halogen group from Cl to I
HClO HBrO HIO (B) HBrO
333 333
HBrO HClO HIO (D) HIO HClO HBrO
333 333
25. Which of the following is soluble in excess of NaOH
Ni(OH)2 Fe(OH)3
Cr(OH)3 Al(OH)3
26. What is the 10 Dq value of complex
120 12
27. Which of the 0.1 M aqueous solution will have the lowest freezing point
C5H10O5 KI
CHO
2 43 122211
28. Silver metal dissolves in a solution of sodium cyanide in the presence of air to form the complex
AgCN
AgCl
29. The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as
Roasting Leaching
Calcination Cupellation
30. If the principal quantum number n the magnetic quantum number m can take on values
31. Which of the following is pella magnetic in low spin state
Co2+ Fe2+
Ni2+ Co3+
32. [Co(NH)Cl]NO and are isomers of
34 22342
Coordination
Geometrical
33. K3[Al(C2O4)3] is called by its IUPAC name as
Potassium trioxalatoaluminate
Potassium trioxalatealumininate
34. What is the structure of IF7
Trigonal bipyramidal
Pentagonal bipyramidal
35. The EAN of [Ni(NH3)6 is
34
36
Optical
Ionization
Potassium trioxalatoaluminium
Potassium Aluminum Oxalate
Square pyramidal
Trigonal planar
38
40
36. How many number of chlorides will be precipitated when a solution of [Co(NH3)Cl]Cl2 will react with an excess of silver nitrate
37. Which of the following red substances turns black on heating and restores its colour on cooling
FeO (B) PbO
34 34
Na2CrO4 NaClO4
38. Which of the halogens will form most hexahalide with sulphur
(D)Br
39. [Pt(NH3)2Cl2] exhibits the isomerism called
Cis-trans Linkage
Ionization Coordination position
40. When a reagent is added to an aqueous solution FeCl3 it gives
Blood red colouration Apple green colouration
Blue colour precipitate Red precipitate
41. Paul-Knorr synthesis of Pyrroles involves the reaction of NH3 with
2-Dicarbonyl Compounds 3-Dicarbonyl Compounds
4-Dicarbonyl Compounds 5-Dicarbonyl Compounds
42. Which one of the following is the major product in the nitration of Naphthalene
2-NO2 naphthalene 3-NO2 naphthalene
6-NO2 naphthalene 1-NO2 naphthalene
43. HS CH2 CH CO2H
NH2
What is the name of this compound
Serine Alanine
Cysteine Glycine
44. Which one of the following Vitamins is essential for coagulation of Blood
(D)B1
45. Identify the heterocyclic ring containing amino acid from the following
Valine Histidine
Leucine Phenylalanine
3
46.
. z
z in the above reaction is
CF3
CF3
BF
3 NO
2
CF
3 CF
3
2 NO2
47.
This conformation of cyclohexane is called as
Twist boat Deformed chair
Chair Boat
48. Identify Thiosemicarbazide from the following
HN-SH HN-C-NH-NH
2
S
H-C-NH-NH2 H2N-C-NH-NH2
OO
49. Ethylmethylamine exhibits which one of the following
Enantiomerism Diastereomerism
Dynamic enantiomerism Geometric isomerism
50. Methyl-a-D-glucoside and Methyl-ß-D-glucoside represent
Epimers Homomers
Atropisomers Anomers
51. What is the source of UV radiation
Hydrogen gas discharge lamp RF oscillator
Klystron oscillator Nernst Filament
52. Which transitions are studied by UV spectrometer
Rotational Electronic
Nuclear Vibrational
53. One nm is equal to
10-5 cm 10-6 cm
10-7 cm 10-8 cm
54. The structure of sulphur dioxide molecule may be given as
Tetrahedral
Linear
55. Identify the preferred solvent for recording
CDCl3
H3C-C-CH3
O
Bent
Plane triangle
H-NMR spectrum from the following
C6H6
CHCl3
56. In H-NMR the aldehydic proton resonates at d value of
1.80 2.50
9.80 7.20
57. Which conformation of n-butane has the lowest potential energy
Eclipsed Partially eclipsed
Gauche Anti
58. An SN1 reaction results in
Retention Racemisation
Inversion Elimination
59. Among the following which alcohol is most reactive with a hydrogen halide
Ethyl t-Butyl
Benzyl Isopropyl
H2
60. H3C C CH2 CH3Lindlar catalyst. z Structure of z is
H3C CH CH CH2 CH3
H3C CH2 CH CH CH3
HC CH CH CH CH
H2C CH CH2 CH2 CH3
32223
61. Oxidation of 3-pentanol yields
Diethyl ketone Acetone
Methyl ethyl ketone Acetone Acetic acid
62. What is the order of a base catalyzed bimolecular elimination reaction of an alkyl halide
First order Pseudo first order
Second order Zero order
63. Identify the product in the addition reaction of HBr to propene in the presence of peroxide
2-Bromopropane 1-Bromopropane
2-Dibromopropane 1-Dibromopropane
1. O3
64. 3-Hexene .product(s)
2. H2O/Zn
What are the products in the above reaction
Acetaldehyde Butanal Formaldehyde Pentanal
Acetone Butanal Propanal Propanal
CO2H
H
OH
65.
H
OH
1
2
CO2H
The configuration of this compound is
1R, 2S 1S, 2R
1R, 2R 1S, 2S
AlCl 3
66. 3CH +CCl ..Y
..
66 4
Structure of Y is
CHCCl (B) CHCHCl
653 652
(CH)CH
653 653
CH3
CHCl2
Cl .CaCO3
2
67. HO.z
hv
2
Br Br
Identify z from the following
CH2OH
CHO
Br Br
HO
OH
CH2CH2OH
CH
Br
Br
68. Which one of the following does not give an Iodoform test
Ph CH2 CH2 OH Ph CH CH3
OH
HC CH CH HC CH OH
323 32
OH
69. Identify succinic acid from the following
CO2H
COH
2
CH
2 (CH2)3
CO2H CO2H
CO2H
CO2H
22
24
CO2H CO2H
O
70. H5C2 O C O C2H5. This structure represents which one of the following
Carbonyl compound Alkoxide
Ester Diether
O
OH.
71. Ph C CH3 Ph CHO z Structure of z is
Ph CO2H Ph CH2OH
Ph C CH CH C Ph Ph CH CH C Ph
OO O
72. The specis formed during the Hofman rearrangement is
R C N2+ RNCO
O
R C N3 RCNO
O
73. Which alkyl halide is most reactive in aliphatic SN2 reaction
R I R Br
R Cl R F
CHO
74. Y H2C CH CHO . What is Y in the above reaction
HC CH (B) HC CH CH CH
22 22
H2C CH CH CH CH3
75. An alkaline solution of cupric ion complexed with tartarate ion is known as
Tollen's reagent Benedict's reagent
Fehling's reagent Bayer's reagent
76. HN CH CH CH COH .
.. product
22| 22
CH3
CH3H3C
HN
NH
O
O
CH3
CH3
NH
NH
O O
77. Identify the n .p* band of a
C Oin the UV spectrum from the following
300 200
250 150
78. Appearence of two bands in the region of 3500 3300cm-1 in IR spectrum is due to which one of the following groups
NH2 N
H
SH Cl
79. Identify the Fundamental NMR equation from the following
.B1tp e.l.c
HV
o -. E
2 p
80. Magnetic anisotropy is shown by which one of the following
CH4 CH3 CH2 OH
H3C CH2 CH2 Cl
81. Average kinetic energy per molecule is 3
RT
2
1 1
kT RT
2 2
82. Rootmean square speed of gas molecule is
3RT M
3RT
8RT
N M
83. For one mole of gas CP and CV relations are
C (B)C C R
P V PV
CP CV R CP CV·R
84. The compressibility factor for ideal gas is
Zero 1
1 1
85. The units of van der Waal's constant are
Moles/lit Atm litre2 mol-2
lit/mol atmospheres
86. The value of PCVC/RTC is
8.314 0.375
2.000 0.082
87. Half-life period is not effected by changing concentration of reactants in the reaction of
First order Second order
Zero order 0.5 order
88. Which of the following is not true for zero order reactions
Rate Rate constant
Rate is independent of concentrations
Rate does not change with time
Rate increase with increase in concentrations
89. The half-life of first order reaction is 0.1 sec. The rate constant is
6.93 sec 0.0693 sec-1
69.3 sec 6.93 sec-1
90. The units of rate of zero order reaction is
Sec-1 Mol lit-1
Mol lit-1 sec-1 Mol lit-1 sec
91. The rate constant for first order reaction is 0.01 sec-1. If the initial concentration of reactant A is 0.1 the initial rate is
1 × 10-2 1 × 10-3
0.1 1.1 × 10-2
92. The pH of 0.05M H2SO4 solution is
2.70 5.20
1.00 2.05
93. The dissociation constant of weak acid HA is 1 × 10-3 and its concentration is 0.1 M. The pH of solution is
94. The units of molar conductance are
S-1 2
Sm2 mol-1 m m M-1
S mol m2 S-1 mol M
95. Which of the following ions has highest ionic mobility
OH Li
Cs H
96. The cell in which electrical energy is converted to chemical energy is
Galvanic cell Voltaiccell
Electrolytic cell Electrochemical cell
97. The standard reduction potentials of Zn2+/Zn and Cu2+/Cu are 0.76v and 0.34v respectively. The Eo of cell Zn Zn2+(0.1M) Cu2+(0.1M) Cu is
0.42v 1.10v
1.10v 0.42v
98. Arrhenius theory of electrolytic conduction does not apply to
HCN NH4OH
CH3COOH KCl
99. Under Isobaric conditions the heat absorbed by the system qp is given by
qp .H qp .E
qp .E .V qp .E P.V
100. CP and CV relation for He gas is
CP CV CP CV
CP CV R CP CV 2R
101. In isothermal expansion of gases, which of the following is zero
q (heat absorbed) W
. E .V
102. Which of the following gases warmed up in adiabatic expansion
O2 N2
Ne H2
103. The .E and .H relation for the reaction C6H6( l 7½ . 6 CO2 3 H2O( l is
.H .E 1.5 RT .H .E 1.5 RT
.H .E ½ RT .H .E
104. Which of the following is true for spontaneous process
.G ve .G ve
.G 0 .G .S .H 0
105. The number of degrees of freedom at triple point in H2O system are
106. The phase rule for condensed systems (Ex Pb-Ag System) at constant P is
F C P 2 F C P 1
F C P 3 F C P 1
107. Gels are
solids dispersed in solid solids dispersed in gas
solids dispersed in liquid Liquids dispersed in solids
108. Highest flocculation value exhibited for Fe(OH)3 solution is
KCl K2Cr2O4
BaCl2
109. Tyndall effect is shown by
Ideal solutions AgCl suspension
Starch solution K2Cr2O7 solution
110. A catalyst is
Consumed in reaction Produced in reaction
Not affected in reaction Undergoes chemical change
111. In an auto catalytic reaction, the rate of reaction
Increase with time Not affected with time
Decrease with time Can't be predicted
112. Pb(C2H5)4 in petrol acts as
Catalyst Promoter
Activator Inhibitor
113. The distribution coefficient expression for distribution of Benzoic acid in Benzene and water is obtained experimentally as K
C C the molecular state of Benzoic acid is
Benzene Water
Dimer in Benzene Monomer in Benzene
Dissociated in Benzene Dimer in Water
114. At equilibrium the free energy change is
0 ve
ve infinity
115. According to Lechateliar principle the reaction in the 2 NO2(g)
2NO2(g) heat equilibrium the forward reaction is favoured when
High T and High P Low T and Low P
Low T and High P High T only
116. Which of the following is not colligative property
Relative lowering of VP Elevation of BP
Osmotic pressure Freezing point
117. Which of the following solution has largest osmotic pressure
0.1M Glucose 0.11M Urea
0.1M BaCl2 0.1 M KCl
118. Two isotonic solutions will have same
Vapour pressure Boiling point
Freezing point Osmotic pressure
119. A non-volatile solid is added to water. Its freezing point will
Increase Decrease
No change Can't be predicted
120. Sea water can be converted into fresh water by
Osmosis Sedimentation
Diffusion Reverse Osmosis
ROUGH WORK
ROUGH WORK
ROUGH WORK
ROUGH WORK
1. Cerium is a member of
s-block element f-block element
d-block element p-block element
2. The element with electronic configuration 1s2, 2s2 2p6, 3s2 is a/an
Metal Non Metal
Metalloid Inert gas
3. Which of the following has Noble gas configuration
La2+ Ce3+
Ce4+ Eu2+
4. Nobelium with atomic number 102 has the electronic configuration
5f 7 6d7 7s2 5f 10 6d4 7s2
5f 14 6d1 7s1 5f 14 6d0 7s2
5. Elements of the same group are characterised by
Ionization potential
Electron affinity
Same number of electrons in the outer most shell
Electronegativity
6. Zr and Hf have similar atomic and ionic radii because of
Diagonal relationship Lanthanide contraction
Both in the same period Similar chemical properties
7. Which of the given elements has the highest second ionization potential
8. The attraction of an atom for electrons in a bonded molecule is called
Ionization potential Oxidation potential
Electron affinity Electronegativity
9. Deuterium atom is an of hydrogen atom.
Isotope Isobar
Isotone Isomer
10. Complete the reaction scheme
94 12
Be +He . C ......... choosing one of the following
42 6
11
n
10
20
e
1
Ca40
11. An isobar of 20 is
K42
Ar38
19
Ca38 Ar40
18
12. Which of the following complexes is most stable
[M(bipyridine)3(D) [M(pyridine)6
13. Which of the following is non polar covalent molecule
All CO2
CCl4 SiF4
14. The strong forces operating in diamond structure are
Hydrophobic Covalent
Ionic Coordinate Covalent
15. The central atom in H2O molecule undergoes the hybridization
sp sp2
dp2 sp3
16. In regular trigonal bipyramidal structure the bond angles are
180o and 60o 60o and 60o
72o and 90o 120o and 90o
17. The hybridization of Tellurium in TeCl4 molecule is
sp3 sp3d
dsp2 d2sp3
18. The longest C-H bond distance is in the following molecule
CHBr
CH
22 222
26 24
19. Oxidation state of of oxygen is observed in
F2O H2O
OF
(C)H2O2 22
20. In the reduction of Cr2O72- by the number of electrons involved per atom of chromium is
21. The oxidation state of Iron in Fe(CO)5 molecule is
22. During oxidation process electrons are
lost gained
paired up remains same
High temperature
23. BH+ 2 NH ...... gives the product as
26 3
Boron nitrate Borazole
Boric acid Borax
24. Which is the correct order of decreasing acid strength halogen group from Cl to I
HClO HBrO HIO (B) HBrO
333 333
HBrO HClO HIO (D) HIO HClO HBrO
333 333
25. Which of the following is soluble in excess of NaOH
Ni(OH)2 Fe(OH)3
Cr(OH)3 Al(OH)3
26. What is the 10 Dq value of complex
120 12
27. Which of the 0.1 M aqueous solution will have the lowest freezing point
C5H10O5 KI
CHO
2 43 122211
28. Silver metal dissolves in a solution of sodium cyanide in the presence of air to form the complex
AgCN
AgCl
29. The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as
Roasting Leaching
Calcination Cupellation
30. If the principal quantum number n the magnetic quantum number m can take on values
31. Which of the following is pella magnetic in low spin state
Co2+ Fe2+
Ni2+ Co3+
32. [Co(NH)Cl]NO and are isomers of
34 22342
Coordination
Geometrical
33. K3[Al(C2O4)3] is called by its IUPAC name as
Potassium trioxalatoaluminate
Potassium trioxalatealumininate
34. What is the structure of IF7
Trigonal bipyramidal
Pentagonal bipyramidal
35. The EAN of [Ni(NH3)6 is
34
36
Optical
Ionization
Potassium trioxalatoaluminium
Potassium Aluminum Oxalate
Square pyramidal
Trigonal planar
38
40
36. How many number of chlorides will be precipitated when a solution of [Co(NH3)Cl]Cl2 will react with an excess of silver nitrate
37. Which of the following red substances turns black on heating and restores its colour on cooling
FeO (B) PbO
34 34
Na2CrO4 NaClO4
38. Which of the halogens will form most hexahalide with sulphur
(D)Br
39. [Pt(NH3)2Cl2] exhibits the isomerism called
Cis-trans Linkage
Ionization Coordination position
40. When a reagent is added to an aqueous solution FeCl3 it gives
Blood red colouration Apple green colouration
Blue colour precipitate Red precipitate
41. Paul-Knorr synthesis of Pyrroles involves the reaction of NH3 with
2-Dicarbonyl Compounds 3-Dicarbonyl Compounds
4-Dicarbonyl Compounds 5-Dicarbonyl Compounds
42. Which one of the following is the major product in the nitration of Naphthalene
2-NO2 naphthalene 3-NO2 naphthalene
6-NO2 naphthalene 1-NO2 naphthalene
43. HS CH2 CH CO2H
NH2
What is the name of this compound
Serine Alanine
Cysteine Glycine
44. Which one of the following Vitamins is essential for coagulation of Blood
(D)B1
45. Identify the heterocyclic ring containing amino acid from the following
Valine Histidine
Leucine Phenylalanine
3
46.
. z
z in the above reaction is
CF3
CF3
BF
3 NO
2
CF
3 CF
3
2 NO2
47.
This conformation of cyclohexane is called as
Twist boat Deformed chair
Chair Boat
48. Identify Thiosemicarbazide from the following
HN-SH HN-C-NH-NH
2
S
H-C-NH-NH2 H2N-C-NH-NH2
OO
49. Ethylmethylamine exhibits which one of the following
Enantiomerism Diastereomerism
Dynamic enantiomerism Geometric isomerism
50. Methyl-a-D-glucoside and Methyl-ß-D-glucoside represent
Epimers Homomers
Atropisomers Anomers
51. What is the source of UV radiation
Hydrogen gas discharge lamp RF oscillator
Klystron oscillator Nernst Filament
52. Which transitions are studied by UV spectrometer
Rotational Electronic
Nuclear Vibrational
53. One nm is equal to
10-5 cm 10-6 cm
10-7 cm 10-8 cm
54. The structure of sulphur dioxide molecule may be given as
Tetrahedral
Linear
55. Identify the preferred solvent for recording
CDCl3
H3C-C-CH3
O
Bent
Plane triangle
H-NMR spectrum from the following
C6H6
CHCl3
56. In H-NMR the aldehydic proton resonates at d value of
1.80 2.50
9.80 7.20
57. Which conformation of n-butane has the lowest potential energy
Eclipsed Partially eclipsed
Gauche Anti
58. An SN1 reaction results in
Retention Racemisation
Inversion Elimination
59. Among the following which alcohol is most reactive with a hydrogen halide
Ethyl t-Butyl
Benzyl Isopropyl
H2
60. H3C C CH2 CH3Lindlar catalyst. z Structure of z is
H3C CH CH CH2 CH3
H3C CH2 CH CH CH3
HC CH CH CH CH
H2C CH CH2 CH2 CH3
32223
61. Oxidation of 3-pentanol yields
Diethyl ketone Acetone
Methyl ethyl ketone Acetone Acetic acid
62. What is the order of a base catalyzed bimolecular elimination reaction of an alkyl halide
First order Pseudo first order
Second order Zero order
63. Identify the product in the addition reaction of HBr to propene in the presence of peroxide
2-Bromopropane 1-Bromopropane
2-Dibromopropane 1-Dibromopropane
1. O3
64. 3-Hexene .product(s)
2. H2O/Zn
What are the products in the above reaction
Acetaldehyde Butanal Formaldehyde Pentanal
Acetone Butanal Propanal Propanal
CO2H
H
OH
65.
H
OH
1
2
CO2H
The configuration of this compound is
1R, 2S 1S, 2R
1R, 2R 1S, 2S
AlCl 3
66. 3CH +CCl ..Y
..
66 4
Structure of Y is
CHCCl (B) CHCHCl
653 652
(CH)CH
653 653
CH3
CHCl2
Cl .CaCO3
2
67. HO.z
hv
2
Br Br
Identify z from the following
CH2OH
CHO
Br Br
HO
OH
CH2CH2OH
CH
Br
Br
68. Which one of the following does not give an Iodoform test
Ph CH2 CH2 OH Ph CH CH3
OH
HC CH CH HC CH OH
323 32
OH
69. Identify succinic acid from the following
CO2H
COH
2
CH
2 (CH2)3
CO2H CO2H
CO2H
CO2H
22
24
CO2H CO2H
O
70. H5C2 O C O C2H5. This structure represents which one of the following
Carbonyl compound Alkoxide
Ester Diether
O
OH.
71. Ph C CH3 Ph CHO z Structure of z is
Ph CO2H Ph CH2OH
Ph C CH CH C Ph Ph CH CH C Ph
OO O
72. The specis formed during the Hofman rearrangement is
R C N2+ RNCO
O
R C N3 RCNO
O
73. Which alkyl halide is most reactive in aliphatic SN2 reaction
R I R Br
R Cl R F
CHO
74. Y H2C CH CHO . What is Y in the above reaction
HC CH (B) HC CH CH CH
22 22
H2C CH CH CH CH3
75. An alkaline solution of cupric ion complexed with tartarate ion is known as
Tollen's reagent Benedict's reagent
Fehling's reagent Bayer's reagent
76. HN CH CH CH COH .
.. product
22| 22
CH3
CH3H3C
HN
NH
O
O
CH3
CH3
NH
NH
O O
77. Identify the n .p* band of a
C Oin the UV spectrum from the following
300 200
250 150
78. Appearence of two bands in the region of 3500 3300cm-1 in IR spectrum is due to which one of the following groups
NH2 N
H
SH Cl
79. Identify the Fundamental NMR equation from the following
.B1tp e.l.c
HV
o -. E
2 p
80. Magnetic anisotropy is shown by which one of the following
CH4 CH3 CH2 OH
H3C CH2 CH2 Cl
81. Average kinetic energy per molecule is 3
RT
2
1 1
kT RT
2 2
82. Rootmean square speed of gas molecule is
3RT M
3RT
8RT
N M
83. For one mole of gas CP and CV relations are
C (B)C C R
P V PV
CP CV R CP CV·R
84. The compressibility factor for ideal gas is
Zero 1
1 1
85. The units of van der Waal's constant are
Moles/lit Atm litre2 mol-2
lit/mol atmospheres
86. The value of PCVC/RTC is
8.314 0.375
2.000 0.082
87. Half-life period is not effected by changing concentration of reactants in the reaction of
First order Second order
Zero order 0.5 order
88. Which of the following is not true for zero order reactions
Rate Rate constant
Rate is independent of concentrations
Rate does not change with time
Rate increase with increase in concentrations
89. The half-life of first order reaction is 0.1 sec. The rate constant is
6.93 sec 0.0693 sec-1
69.3 sec 6.93 sec-1
90. The units of rate of zero order reaction is
Sec-1 Mol lit-1
Mol lit-1 sec-1 Mol lit-1 sec
91. The rate constant for first order reaction is 0.01 sec-1. If the initial concentration of reactant A is 0.1 the initial rate is
1 × 10-2 1 × 10-3
0.1 1.1 × 10-2
92. The pH of 0.05M H2SO4 solution is
2.70 5.20
1.00 2.05
93. The dissociation constant of weak acid HA is 1 × 10-3 and its concentration is 0.1 M. The pH of solution is
94. The units of molar conductance are
S-1 2
Sm2 mol-1 m m M-1
S mol m2 S-1 mol M
95. Which of the following ions has highest ionic mobility
OH Li
Cs H
96. The cell in which electrical energy is converted to chemical energy is
Galvanic cell Voltaiccell
Electrolytic cell Electrochemical cell
97. The standard reduction potentials of Zn2+/Zn and Cu2+/Cu are 0.76v and 0.34v respectively. The Eo of cell Zn Zn2+(0.1M) Cu2+(0.1M) Cu is
0.42v 1.10v
1.10v 0.42v
98. Arrhenius theory of electrolytic conduction does not apply to
HCN NH4OH
CH3COOH KCl
99. Under Isobaric conditions the heat absorbed by the system qp is given by
qp .H qp .E
qp .E .V qp .E P.V
100. CP and CV relation for He gas is
CP CV CP CV
CP CV R CP CV 2R
101. In isothermal expansion of gases, which of the following is zero
q (heat absorbed) W
. E .V
102. Which of the following gases warmed up in adiabatic expansion
O2 N2
Ne H2
103. The .E and .H relation for the reaction C6H6( l 7½ . 6 CO2 3 H2O( l is
.H .E 1.5 RT .H .E 1.5 RT
.H .E ½ RT .H .E
104. Which of the following is true for spontaneous process
.G ve .G ve
.G 0 .G .S .H 0
105. The number of degrees of freedom at triple point in H2O system are
106. The phase rule for condensed systems (Ex Pb-Ag System) at constant P is
F C P 2 F C P 1
F C P 3 F C P 1
107. Gels are
solids dispersed in solid solids dispersed in gas
solids dispersed in liquid Liquids dispersed in solids
108. Highest flocculation value exhibited for Fe(OH)3 solution is
KCl K2Cr2O4
BaCl2
109. Tyndall effect is shown by
Ideal solutions AgCl suspension
Starch solution K2Cr2O7 solution
110. A catalyst is
Consumed in reaction Produced in reaction
Not affected in reaction Undergoes chemical change
111. In an auto catalytic reaction, the rate of reaction
Increase with time Not affected with time
Decrease with time Can't be predicted
112. Pb(C2H5)4 in petrol acts as
Catalyst Promoter
Activator Inhibitor
113. The distribution coefficient expression for distribution of Benzoic acid in Benzene and water is obtained experimentally as K
C C the molecular state of Benzoic acid is
Benzene Water
Dimer in Benzene Monomer in Benzene
Dissociated in Benzene Dimer in Water
114. At equilibrium the free energy change is
0 ve
ve infinity
115. According to Lechateliar principle the reaction in the 2 NO2(g)
2NO2(g) heat equilibrium the forward reaction is favoured when
High T and High P Low T and Low P
Low T and High P High T only
116. Which of the following is not colligative property
Relative lowering of VP Elevation of BP
Osmotic pressure Freezing point
117. Which of the following solution has largest osmotic pressure
0.1M Glucose 0.11M Urea
0.1M BaCl2 0.1 M KCl
118. Two isotonic solutions will have same
Vapour pressure Boiling point
Freezing point Osmotic pressure
119. A non-volatile solid is added to water. Its freezing point will
Increase Decrease
No change Can't be predicted
120. Sea water can be converted into fresh water by
Osmosis Sedimentation
Diffusion Reverse Osmosis
ROUGH WORK
ROUGH WORK
ROUGH WORK
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