Exam Details
Subject | chemistry | |
Paper | paper 2 | |
Exam / Course | ||
Department | ||
Organization | rajasthan public service commission | |
Position | college lecturer | |
Exam Date | 2016 | |
City, State | rajasthan, |
Question Paper
1
Electronic Configuration of Europium is
<img src='./qimages/3399-1.jpg'>
2
Actinides which exhibit oxidation state are-
Np
Np, Pu
Pu, Am
Am, Cm
3
Which expression is used to calculate magnetic moment of Lanthanide ions
<img src='./qimages/3399-3.jpg'>
4
Which of the following ion is not paramagnetic
<img src='./qimages/3399-4.jpg'>
5
Electronic configuration of Curium 96] is
<img src='./qimages/3399-5.jpg'>
6
Member of Lanthanide series which exhibits oxidation state is
Ce
Pm
Eu
Er
7 Which of the following ions is colourless
<img src='./qimages/3399-7.jpg'>
8 The formula of Inorganic benzene is
<img src='./qimages/3399-8.jpg'>
9
Which of the following statements is correct for diborane
sp hybridization, Linear structure
SP2 hybridization,banana bond
sp3 hybridization, banana bond
sp hybridization, Banana bond
10
Carborane is formed by the reaction of decaborane14
with.........
methane
ethane
ethene
ethyne
11
Borazine is..........reactive than Benzene
less
more
equal
very less
12
Total number of (3c2e) banana bonds in diborane is
Zero
One
Two
Three
13
Silicones are-
polymer compounds of silicon and carbon
polymer compounds of silicon and hydrogen
polymer compounds of silicon, carbon and oxygen
polymer compounds of silicon, carbon and hydrogen
14
Fundamental unit found in all silicates is
<img src='./qimages/3399-14.jpg'>
15
<img src='./qimages/3399-15.jpg'>
16
the geometry of xef2 is-
Tetrahedral
Pentagonal
Octahedral
Linear
17
<img src='./qimages/3399-17.jpg'>
18
Cubic
Tetragonal
Monoclinic
Hexagonal
19
Which of the following crystals does not exhibit Frankel defect
AgBr
AgCl
KBr
ZnS
20
To make Ge a p type of semiconductor, it is doped with
trivalent impurities
tetravalent impurities
pentavalent impurities
divalent impurities
21
Which of the following crystal defects decreases density of the substance
Interstitial defect
Frankel defect
Schottky defect
F centre
22 Bragg equation is
<img src='./qimages/3399-22.jpg'>
23
The total number of Bravais lattices in a crystal is
7
32
230
14
24 Total number of atoms in an unit cell of a face centred cubic unit fcc is
2
3
4
6
25
The reagent which can be used to distinguish between starch and cellulose is
Tollen's reagent
Iodine solution
Acetic anhydride
Fehling's solution
26 Glucose on oxidation with concentrated nitric acid forms
Gluconic acid
Oxalic acid
Malonic acid
Saccharic acid
27
Invert sugar is
Sucrose
Mixture of Glucose Fructose
Maltose
Lactose
28
Which of the following is a thymine base
<img src='./qimages/3399-28.jpg'>
29
Which one of the following is a globular protein
Collagen
Myosin
Insulin
Fibroin
30 The bond present between glucose units of cellulose is
<img src='./qimages/3399-30.jpg'>
31
The sugar moiety present in DNA molecule is
<img src='./qimages/3399-31.jpg'>
32
Piperine on hydrolysis by alkali gives
Piperic acid
Piperidinc
Piperic acid Piperidine
Piperonal
33
Nicotine on oxidation with chromic acid or potassium permanganate gives
Nicotinic acid
Nicotone
Nicotine sulphate
Nicotinamide
34 Cholesterol on oxidation forms
Cholestanol
Cholestenone
Cholesterase
Cholestene
35
When acetoacetic ester reacts with phenyl hydrazine, it forms
3 Methyl 1 phenylpyrozolone
4 methyluracil
Ethyl acetate
1,3 butanediol
36
Luminal
Crotonic acid
Barbituric acid
Adipic acid
37
College Lecturer Exam ChemistryII
Perkin reaction
Reformatsky reaction
Knoevenagel reaction
Claisen reaction
38
The reaction intermediate formed in Claisen condensation is
Carbonium ion
Carbene
Carbanion
Free radical
39 Gilman reagent is
R2CULI
R-Lindlar
R-MG-X
40 R4SI
40
<img src='./qimages/3399-40.jpg'>
41 o Bromofluorobenzene reacts with lithium amalgam in presence of furan to form 1,4 epoxy
1,4 dihydronaphthalene. Identify the reaction intermediate in above reaction.
Carbonium ion
Carbanion
Benzyne
Carbene
42
Which of the following esters on reaction with Grignard reagent and subsequent hydrolysis gives aldehyde
<img src='./qimages/3399-42.jpg'>
43
Trigonal bipyramidal
Tetrahedral
Square planar
Square pyramidal
44
Cement, Ceramics and Glass industries are based on chemistry of ........
Silicates
Diborane
Silicones
Borazine
45
Oxidation
Reduction
Neutralisation
Hydrolysis
46 Which of the following properties is not related to colloidal solution
Electrophoresis
tyndall effect
mu particle size.
diffusion.
47
The efficiency of coagulation depends upon valeny of cation as follows
Independent of valency
It decreases with increase of valency
It increases with increase of valency
Randomly changes
48
Valeric acid
Adipic acid
Succinic acid
Glutaric acid
49
Oil of hemlock was drunk by Socrates, when he was condemned to death. Identify the alkaloid responsible for
death.
Cocaine
Morphine
Coniine
Quinine
50
Energy of particle in one dimensional box is
<img src='./qimages/3399-50.jpg'>
51
The time dependent Schrodinger wave equation can be represented by
<img src='./qimages/3399-51.jpg'>
52
Dispersion medium and dispersed phase in butter respectively are
solid, liquid
liquid, solid
solid, gas
solid, solid
53
Which of the following is not a method to purify a colloid
Electrodialysis
Coagulation
Dialysis
Ultrafiltration
54
Eluent strength is a measure of
solvent absorption energy
solvent adsorption energy
solvent diffusivity
solvent mixing index
55
Wilkinson catalyst is used for
Polymerization
Homogeneous Hydrogenation
Hydrolysis
Halogenation
56
An example of sandwich compound is
Ferrocene
Phase transfer catalyst
Crown ether
Clathrate compound
57
<img src='./qimages/3399-57.jpg'>
58
<img src='./qimages/3399-58.jpg'>
Photocyclization
Photodimerization
Paterno Buchii reaction
Norrish type II reaction
59
Catalyst used in Rosenmund reduction is
<img src='./qimages/3399-59.jpg'>
60
The acid which does not contain carboxylic group is
Pyruvic acid
Alanine
Cinnamic acid
Picric acid
61
The incorrect statement with regard to differential thermal analysis DTA is
The temperature of the sample is compared with that of inert reference material.
The temperature remains same until thermal event occurs.
In case of an external event being exothermic, the temperature of the reference exceeds than that of sample .
the plot of delta T versus TT gives thermogram.
62
Which of the following statement for DTA is incorrect
It is not used as a fingerprint for identification.
It is used in mineral research.
It is used in food industry.
It is used in pharmaceutical industry.
63
<img src='./qimages/3399-63.jpg'>
64
In atomic absorption spectroscopy, radiation is absorbed by atoms in vapour state.
Excited
Unexcited
Both Excited and Unexcited
None of these
65
The most widely used source of radiation in atomic absorption spectroscopy is
Hydrogen gas lamp
Hollow cathode lamp
Deuterium lamp
Tungsten lamp
66
Untrue statement about atomic absorption spectroscopy is
It can determine elements in solution.
It can determine elements in solids.
The use of this technique is based on Beer's law.
It can determine all the elements.
67
The value of Hamiltonian operator is
<img src='./qimages/3399-67.jpg'>
68
Cope rearrangement of Hexa 1,5 diene is a
1,3 sigmatropic rearrangement
1,6 sigmatropic rearrangement
3,3 sigmatropic rearrangement
6,6 sigmatropic rearrangement
69
Polymerisation reaction.
Substitution reaction.
Condensation reaction.
Cycloaddition reaction.
70
5 Methyl 2 hexanone can be synthesised by acetoacetic ester using
Butyl bromide
Isobutyl bromide
Methyl bromide
Ethyl bromide
71 The oxidising agent used in Baeyer Villiger oxidation is
<img src='./qimages/3399-71.jpg'>
72
Common adsorbent(s) or stationary phase(s) that can be used in adsorption column chromatography is/are
Alumina
Silica Gel
Cellulose powder
All of Alumina, Silica Gel, and Cellulose powder
73
Pick up an imino acid
Proline
Cysteine
Serine
Tyrosine
74
<img src='./qimages/3399-74.jpg'>
Jone's Oxidation
Sarett Oxidation
Swern Oxidation
CoreyKim
75
<img src='./qimages/3399-75.jpg'>
76
For formula of Zeise's salt is
<img src='./qimages/3399-76.jpg'>
77
Alkynes add on hydrogen in the presence of Lindlar's catalyst to give
cis -alkene
trans alkene
alkanes
cycloalkanes
78
Reaction of ferrocene with an equimolar amount of acetyl chloride gives a product in which cyclopentadienyl
ring undergoes
Diel's Alder reaction
Catalytic hydrogenation
Friedel Crafts acylation
Hydroformylation
79
Which of the following is an organometallic compound
<img src='./qimages/3399-79.jpg'>
80
<img src='./qimages/3399-80.jpg'>
Epimers
Functional isomers
Anomers
Position isomers
81 Barton reaction involves photolysis of ……
<img src='./qimages/3399-81.jpg'>
82
<img src='./qimages/3399-82.jpg'>
Anionic
Free radical
Cationic
Concerted
83
<img src='./qimages/3399-83.jpg'>
84
Pyrrole on Hofmann Exhaustive Methylation gives
<img src='./qimages/3399-84.jpg'>
85
Which one is a non-radiative transition
Fluorescence
Phosphorescence
Internal Conversion
Chemiluminescence
86
Which of the following reagent is used in Oppenauer oxidation
NABH4
LIALH4
OSO4
Aluminium isopropoxide
87
A reagent used for cishydroxylation of double bond is
SeO2
Raney Nickel
LDA
oso4
88
<img src='./qimages/3399-88.jpg'>
br2-h2o
liALH4
Baker's yeast
LTA
89
Which of the following reagent is used in Arndt Eistert synthsis of acid
OSO4
SEO2
CH2N2
NAH4
90
How many nodes are present in LUMO of 1,3,5-hexatriene
3
1
2
4
91
Pich up the Chichibabin's hydrocarbon .
<img src='./qimages/3399-91.jpg'>
92
The reagent used in polymerisation of isoprene into natural synthetic rubber is
Lead tetraacetate
Wilkinson's catalyst
Ziegler Natta catalyst
Baker's yeast
93
Which metal is present in chlorophyll?
Fe
Mg
Ca
Ba
94
<img src='./qimages/3399-94.jpg'>
Nitrogen fixation
Nitrogen estimation
Nitrogen excretion
None of these
95
Which of the following is used as phase transfer Catalyst.
Urea
Crown ether
Ethanol
Acetoacetic ester
96
<img src='./qimages/3399-96.jpg'>
Acid
Primary Alcohol
Aldehyde
Ketone
97
The active species in Tollen's reagent is
<img src='./qimages/3399-97.jpg'>
98
the reaction
d-glucose->D-mannose.
Conversion
Retention
Mutarotation
Epimerisation
99
Nitrobenzene when reduced with Zn NaOH gives
Aniline
Hydrazobenzene
Azoxybenzene
Nitrosobenzene
100
The role of alum in purification of muddy water is that of
Adsorbent
Sublimate
Absorbent
Coagulant
101
Both myoglobin and haemoglobin are
paramagnetic
diamagnetic
ferromagnetic
none of paramagnetic, diamagnetic and ferromagnetic
102
Which one of the following base is not present in RNA
Adenine
thymine
uracil
cytosine
103
THE structure of[icl4]- is
Tetrahedral
Square planar
T Shaped
Pyramidal
104
EAN of mental atoms in FE(co)5 and co2(co)8 are respectively
34,35
34,36
36,36
36,35
105
The unit of the molecular partition function is
<img src='./qimages/3399-105.jpg'>
106 The Energy levels of a particle of mass m in a box of length L are
Non-Quantised
Quantised
Same
none of NonQuantised Quantised and Same
107 Which metal is present in myoglobin
Zr
Mg
Fe
Cu
108 The number of pyrrole nucleus/nuclei in Haemoglobin is/are
2
3
4
1
109 NH3 molecule belongs to which point group
c2v
c3v
c4v
d2h
110
Which pairing of molecule and point group is correct
BCL3,C2V
H2O,C2V
H2S,D2H
CH2CL2,TD
111 THE POINT GROUP OF METHANE Isobutyl
C4W
TD
D4
D3H
112
The Stokes Einstein equation is
<img src='./qimages/3399-112.jpg'>
113
Huekel's rule states that a conjugated polymethine will be aromatic if it contains
<img src='./qimages/3399-113.jpg'>
114 1,6 Dicarboxylic acids on heating with acetic anhydride give
cyclic ketones
cyclic anhydride
carbon suboxide
ketene
115
Proteins on acidic or enzymatic hydrolysis give
DAmino acids
LAmino Acids
DLAmino acids
Amino acids
116
Which of the following complexes is likely to show optical isomerism
117
Which of the following is prussian blue
<img src='./qimages/3399-117.jpg'>
118
If the ratio of viscosity of polymer solution to that of the viscosity of the solvent be 1.102 at a polymer
concentration of 2.0 calculate the intrinsic viscosity for determining the molecular weight of the polymer.
<img src='./qimages/3399-118.jpg'>
119 Which of the following molecular partition function is equal to statistical weight, g
Translation
Rotational
Vibrational
Electronic
120
Assuming degeneracy to be unity the ratio of number of molecules having energy 3.0 kT and 2.0 kT is
e
e-1
1.5
0.65
121 In how many different ways can six distinguishable molecules be placed in three different energy levels with three molecules in the first, two in the second and one in the third ignoring any requirement of energy
10
3
30
60
122
<img src='./qimages/3399-122.jpg'>
Both A and B are eigen functions
None of A and B is eigen function
A is eigen function B is not
B is eigen function A is not
123
The expectation value of the distance of an electron from the nucleus in the ground state of the hydrogen atom
is equal to
<img src='./qimages/3399-123.jpg'>
124
<img src='./qimages/3399-124.jpg'>
125
<img src='./qimages/3399-125.jpg'>
126
Absorbed wavelengths in atomic absorption spectrum appear as
dark background
dark lines
light background
light lines
127
Lines, which appear in absorption and emission spectra of a substance, have wavelengths which are
Same
Different
Very different
Far apart
128
Background in atomic absorption spectrum is
Bright
Dark
Brown
Purple
129
Which of the following physical changes is measured by TGA
Mass loss
Deformations and dimension
Heat difference
Temperature difference
130
With regard to thermal analysis a student made two statements A and B
The differential temperature is
plotted against time to obtain DTA curve.
The differential temperature is plotted against temperature to
obtain thermogram.
Select the correct answer
Both A and B are false
A is true but B is false
B is true but A is false
Both A and B are true
131
Which of the following technique is based on the measurement of temperature difference?
Thermogravimetric analysis
Differential thermal analysis
Differential scanning calorimetry
Thermo mechanical analysis
132
The incorrect statement regarding chain growth polymerization is
Same single step is repeated throughout reaction process.
Some monomer remains even at long reaction times .
Molar mass of backbone chain increases rapidly at early stage and remains approximately the same throughout the polymerization .
Initiator is required.
133
A polymer is made from the monomers terephthalic acid and ethylene glycol, with the latter being in excess.
The polymer obtained would have;
Carboxylic group at one end and hydroxyl group at the other end
Carboxylic groups at both the ends
Hydroxyl groups at the both ends
Carboxylic group at one end and ester group at the other end
134
Among the following four methods A. NMR spectroscopy B. IR spectroscopy C.Mass spectroscopy D.Titration. End group analysis is performed by
By A only
By B only
By B and C only
By all of C and D
135
Polystyrene, polyacrylonitrile and poly(vinyl chloride) prepared normally are
Mostly atactic
Mostly isotactic
Mostly syndiotactic
a 1:1 mixture of isotactic and syndiotactic
136
The catalyst for anionic polymerization is not
sodium in liquid ammonia
alkali metal alkyls
Grignard reagents
boron trifluoride and water
137
Find the point group for tetracarbonylnickel
c2v
td
d5d
c2h
138 determine the point group for
oh
td
d2h
c2v
139
What is the main result of adding surfactants into a liquid composed of two immiscible phases such as oil and water
Reduction in the interfacial tension between the phases
Increase in the interfacial tension between the phases
Catalysis of the reaction between two phases
No effect
140
<img src='./qimages/3399-140.jpg'>
141
Among the following the surfactant that will form micelles in aqueous solution at the lowest molar
concentration at ambient conditon is
<img src='./qimages/3399-141.jpg'>
142
Which of the following properties increases abruptly when micelles are formed
Conductivity
Surface tension
Osmotic pressure
SelfDiffusion
143
Which of the following factors causes CMC to increase
An increase in the number of carbon atoms in the hydrophobic tails.
The additon of electrolyte to ionic surfactants.
The existence of polar organic compounds.
Hydrophilic groups placed in the surfactant molecule centre.
144
<img src='./qimages/3399-144.jpg'>
145
<img src='./qimages/3399-145.jpg'>
146
Term Symbol for Na is
3s1
2s1/2
2p1/2
1so
147
Pick up the planar molecule
<img src='./qimages/3399-147.jpg'>
148
The strongest conjugate base is
2)CH3COO-
SO42-
NO3-
149
Identify the type of isomerism present in nitropentaammine chromium(III).
Optical isomeresim
Linkage
Ionization
Polymerization
150
Benzene diazonium sulphate on treatment with ethanol and copper powder gives
Benzene
Phenol
Chlorobenzene
Diphenyl
Electronic Configuration of Europium is
<img src='./qimages/3399-1.jpg'>
2
Actinides which exhibit oxidation state are-
Np
Np, Pu
Pu, Am
Am, Cm
3
Which expression is used to calculate magnetic moment of Lanthanide ions
<img src='./qimages/3399-3.jpg'>
4
Which of the following ion is not paramagnetic
<img src='./qimages/3399-4.jpg'>
5
Electronic configuration of Curium 96] is
<img src='./qimages/3399-5.jpg'>
6
Member of Lanthanide series which exhibits oxidation state is
Ce
Pm
Eu
Er
7 Which of the following ions is colourless
<img src='./qimages/3399-7.jpg'>
8 The formula of Inorganic benzene is
<img src='./qimages/3399-8.jpg'>
9
Which of the following statements is correct for diborane
sp hybridization, Linear structure
SP2 hybridization,banana bond
sp3 hybridization, banana bond
sp hybridization, Banana bond
10
Carborane is formed by the reaction of decaborane14
with.........
methane
ethane
ethene
ethyne
11
Borazine is..........reactive than Benzene
less
more
equal
very less
12
Total number of (3c2e) banana bonds in diborane is
Zero
One
Two
Three
13
Silicones are-
polymer compounds of silicon and carbon
polymer compounds of silicon and hydrogen
polymer compounds of silicon, carbon and oxygen
polymer compounds of silicon, carbon and hydrogen
14
Fundamental unit found in all silicates is
<img src='./qimages/3399-14.jpg'>
15
<img src='./qimages/3399-15.jpg'>
16
the geometry of xef2 is-
Tetrahedral
Pentagonal
Octahedral
Linear
17
<img src='./qimages/3399-17.jpg'>
18
Cubic
Tetragonal
Monoclinic
Hexagonal
19
Which of the following crystals does not exhibit Frankel defect
AgBr
AgCl
KBr
ZnS
20
To make Ge a p type of semiconductor, it is doped with
trivalent impurities
tetravalent impurities
pentavalent impurities
divalent impurities
21
Which of the following crystal defects decreases density of the substance
Interstitial defect
Frankel defect
Schottky defect
F centre
22 Bragg equation is
<img src='./qimages/3399-22.jpg'>
23
The total number of Bravais lattices in a crystal is
7
32
230
14
24 Total number of atoms in an unit cell of a face centred cubic unit fcc is
2
3
4
6
25
The reagent which can be used to distinguish between starch and cellulose is
Tollen's reagent
Iodine solution
Acetic anhydride
Fehling's solution
26 Glucose on oxidation with concentrated nitric acid forms
Gluconic acid
Oxalic acid
Malonic acid
Saccharic acid
27
Invert sugar is
Sucrose
Mixture of Glucose Fructose
Maltose
Lactose
28
Which of the following is a thymine base
<img src='./qimages/3399-28.jpg'>
29
Which one of the following is a globular protein
Collagen
Myosin
Insulin
Fibroin
30 The bond present between glucose units of cellulose is
<img src='./qimages/3399-30.jpg'>
31
The sugar moiety present in DNA molecule is
<img src='./qimages/3399-31.jpg'>
32
Piperine on hydrolysis by alkali gives
Piperic acid
Piperidinc
Piperic acid Piperidine
Piperonal
33
Nicotine on oxidation with chromic acid or potassium permanganate gives
Nicotinic acid
Nicotone
Nicotine sulphate
Nicotinamide
34 Cholesterol on oxidation forms
Cholestanol
Cholestenone
Cholesterase
Cholestene
35
When acetoacetic ester reacts with phenyl hydrazine, it forms
3 Methyl 1 phenylpyrozolone
4 methyluracil
Ethyl acetate
1,3 butanediol
36
Luminal
Crotonic acid
Barbituric acid
Adipic acid
37
College Lecturer Exam ChemistryII
Perkin reaction
Reformatsky reaction
Knoevenagel reaction
Claisen reaction
38
The reaction intermediate formed in Claisen condensation is
Carbonium ion
Carbene
Carbanion
Free radical
39 Gilman reagent is
R2CULI
R-Lindlar
R-MG-X
40 R4SI
40
<img src='./qimages/3399-40.jpg'>
41 o Bromofluorobenzene reacts with lithium amalgam in presence of furan to form 1,4 epoxy
1,4 dihydronaphthalene. Identify the reaction intermediate in above reaction.
Carbonium ion
Carbanion
Benzyne
Carbene
42
Which of the following esters on reaction with Grignard reagent and subsequent hydrolysis gives aldehyde
<img src='./qimages/3399-42.jpg'>
43
Trigonal bipyramidal
Tetrahedral
Square planar
Square pyramidal
44
Cement, Ceramics and Glass industries are based on chemistry of ........
Silicates
Diborane
Silicones
Borazine
45
Oxidation
Reduction
Neutralisation
Hydrolysis
46 Which of the following properties is not related to colloidal solution
Electrophoresis
tyndall effect
mu particle size.
diffusion.
47
The efficiency of coagulation depends upon valeny of cation as follows
Independent of valency
It decreases with increase of valency
It increases with increase of valency
Randomly changes
48
Valeric acid
Adipic acid
Succinic acid
Glutaric acid
49
Oil of hemlock was drunk by Socrates, when he was condemned to death. Identify the alkaloid responsible for
death.
Cocaine
Morphine
Coniine
Quinine
50
Energy of particle in one dimensional box is
<img src='./qimages/3399-50.jpg'>
51
The time dependent Schrodinger wave equation can be represented by
<img src='./qimages/3399-51.jpg'>
52
Dispersion medium and dispersed phase in butter respectively are
solid, liquid
liquid, solid
solid, gas
solid, solid
53
Which of the following is not a method to purify a colloid
Electrodialysis
Coagulation
Dialysis
Ultrafiltration
54
Eluent strength is a measure of
solvent absorption energy
solvent adsorption energy
solvent diffusivity
solvent mixing index
55
Wilkinson catalyst is used for
Polymerization
Homogeneous Hydrogenation
Hydrolysis
Halogenation
56
An example of sandwich compound is
Ferrocene
Phase transfer catalyst
Crown ether
Clathrate compound
57
<img src='./qimages/3399-57.jpg'>
58
<img src='./qimages/3399-58.jpg'>
Photocyclization
Photodimerization
Paterno Buchii reaction
Norrish type II reaction
59
Catalyst used in Rosenmund reduction is
<img src='./qimages/3399-59.jpg'>
60
The acid which does not contain carboxylic group is
Pyruvic acid
Alanine
Cinnamic acid
Picric acid
61
The incorrect statement with regard to differential thermal analysis DTA is
The temperature of the sample is compared with that of inert reference material.
The temperature remains same until thermal event occurs.
In case of an external event being exothermic, the temperature of the reference exceeds than that of sample .
the plot of delta T versus TT gives thermogram.
62
Which of the following statement for DTA is incorrect
It is not used as a fingerprint for identification.
It is used in mineral research.
It is used in food industry.
It is used in pharmaceutical industry.
63
<img src='./qimages/3399-63.jpg'>
64
In atomic absorption spectroscopy, radiation is absorbed by atoms in vapour state.
Excited
Unexcited
Both Excited and Unexcited
None of these
65
The most widely used source of radiation in atomic absorption spectroscopy is
Hydrogen gas lamp
Hollow cathode lamp
Deuterium lamp
Tungsten lamp
66
Untrue statement about atomic absorption spectroscopy is
It can determine elements in solution.
It can determine elements in solids.
The use of this technique is based on Beer's law.
It can determine all the elements.
67
The value of Hamiltonian operator is
<img src='./qimages/3399-67.jpg'>
68
Cope rearrangement of Hexa 1,5 diene is a
1,3 sigmatropic rearrangement
1,6 sigmatropic rearrangement
3,3 sigmatropic rearrangement
6,6 sigmatropic rearrangement
69
Polymerisation reaction.
Substitution reaction.
Condensation reaction.
Cycloaddition reaction.
70
5 Methyl 2 hexanone can be synthesised by acetoacetic ester using
Butyl bromide
Isobutyl bromide
Methyl bromide
Ethyl bromide
71 The oxidising agent used in Baeyer Villiger oxidation is
<img src='./qimages/3399-71.jpg'>
72
Common adsorbent(s) or stationary phase(s) that can be used in adsorption column chromatography is/are
Alumina
Silica Gel
Cellulose powder
All of Alumina, Silica Gel, and Cellulose powder
73
Pick up an imino acid
Proline
Cysteine
Serine
Tyrosine
74
<img src='./qimages/3399-74.jpg'>
Jone's Oxidation
Sarett Oxidation
Swern Oxidation
CoreyKim
75
<img src='./qimages/3399-75.jpg'>
76
For formula of Zeise's salt is
<img src='./qimages/3399-76.jpg'>
77
Alkynes add on hydrogen in the presence of Lindlar's catalyst to give
cis -alkene
trans alkene
alkanes
cycloalkanes
78
Reaction of ferrocene with an equimolar amount of acetyl chloride gives a product in which cyclopentadienyl
ring undergoes
Diel's Alder reaction
Catalytic hydrogenation
Friedel Crafts acylation
Hydroformylation
79
Which of the following is an organometallic compound
<img src='./qimages/3399-79.jpg'>
80
<img src='./qimages/3399-80.jpg'>
Epimers
Functional isomers
Anomers
Position isomers
81 Barton reaction involves photolysis of ……
<img src='./qimages/3399-81.jpg'>
82
<img src='./qimages/3399-82.jpg'>
Anionic
Free radical
Cationic
Concerted
83
<img src='./qimages/3399-83.jpg'>
84
Pyrrole on Hofmann Exhaustive Methylation gives
<img src='./qimages/3399-84.jpg'>
85
Which one is a non-radiative transition
Fluorescence
Phosphorescence
Internal Conversion
Chemiluminescence
86
Which of the following reagent is used in Oppenauer oxidation
NABH4
LIALH4
OSO4
Aluminium isopropoxide
87
A reagent used for cishydroxylation of double bond is
SeO2
Raney Nickel
LDA
oso4
88
<img src='./qimages/3399-88.jpg'>
br2-h2o
liALH4
Baker's yeast
LTA
89
Which of the following reagent is used in Arndt Eistert synthsis of acid
OSO4
SEO2
CH2N2
NAH4
90
How many nodes are present in LUMO of 1,3,5-hexatriene
3
1
2
4
91
Pich up the Chichibabin's hydrocarbon .
<img src='./qimages/3399-91.jpg'>
92
The reagent used in polymerisation of isoprene into natural synthetic rubber is
Lead tetraacetate
Wilkinson's catalyst
Ziegler Natta catalyst
Baker's yeast
93
Which metal is present in chlorophyll?
Fe
Mg
Ca
Ba
94
<img src='./qimages/3399-94.jpg'>
Nitrogen fixation
Nitrogen estimation
Nitrogen excretion
None of these
95
Which of the following is used as phase transfer Catalyst.
Urea
Crown ether
Ethanol
Acetoacetic ester
96
<img src='./qimages/3399-96.jpg'>
Acid
Primary Alcohol
Aldehyde
Ketone
97
The active species in Tollen's reagent is
<img src='./qimages/3399-97.jpg'>
98
the reaction
d-glucose->D-mannose.
Conversion
Retention
Mutarotation
Epimerisation
99
Nitrobenzene when reduced with Zn NaOH gives
Aniline
Hydrazobenzene
Azoxybenzene
Nitrosobenzene
100
The role of alum in purification of muddy water is that of
Adsorbent
Sublimate
Absorbent
Coagulant
101
Both myoglobin and haemoglobin are
paramagnetic
diamagnetic
ferromagnetic
none of paramagnetic, diamagnetic and ferromagnetic
102
Which one of the following base is not present in RNA
Adenine
thymine
uracil
cytosine
103
THE structure of[icl4]- is
Tetrahedral
Square planar
T Shaped
Pyramidal
104
EAN of mental atoms in FE(co)5 and co2(co)8 are respectively
34,35
34,36
36,36
36,35
105
The unit of the molecular partition function is
<img src='./qimages/3399-105.jpg'>
106 The Energy levels of a particle of mass m in a box of length L are
Non-Quantised
Quantised
Same
none of NonQuantised Quantised and Same
107 Which metal is present in myoglobin
Zr
Mg
Fe
Cu
108 The number of pyrrole nucleus/nuclei in Haemoglobin is/are
2
3
4
1
109 NH3 molecule belongs to which point group
c2v
c3v
c4v
d2h
110
Which pairing of molecule and point group is correct
BCL3,C2V
H2O,C2V
H2S,D2H
CH2CL2,TD
111 THE POINT GROUP OF METHANE Isobutyl
C4W
TD
D4
D3H
112
The Stokes Einstein equation is
<img src='./qimages/3399-112.jpg'>
113
Huekel's rule states that a conjugated polymethine will be aromatic if it contains
<img src='./qimages/3399-113.jpg'>
114 1,6 Dicarboxylic acids on heating with acetic anhydride give
cyclic ketones
cyclic anhydride
carbon suboxide
ketene
115
Proteins on acidic or enzymatic hydrolysis give
DAmino acids
LAmino Acids
DLAmino acids
Amino acids
116
Which of the following complexes is likely to show optical isomerism
117
Which of the following is prussian blue
<img src='./qimages/3399-117.jpg'>
118
If the ratio of viscosity of polymer solution to that of the viscosity of the solvent be 1.102 at a polymer
concentration of 2.0 calculate the intrinsic viscosity for determining the molecular weight of the polymer.
<img src='./qimages/3399-118.jpg'>
119 Which of the following molecular partition function is equal to statistical weight, g
Translation
Rotational
Vibrational
Electronic
120
Assuming degeneracy to be unity the ratio of number of molecules having energy 3.0 kT and 2.0 kT is
e
e-1
1.5
0.65
121 In how many different ways can six distinguishable molecules be placed in three different energy levels with three molecules in the first, two in the second and one in the third ignoring any requirement of energy
10
3
30
60
122
<img src='./qimages/3399-122.jpg'>
Both A and B are eigen functions
None of A and B is eigen function
A is eigen function B is not
B is eigen function A is not
123
The expectation value of the distance of an electron from the nucleus in the ground state of the hydrogen atom
is equal to
<img src='./qimages/3399-123.jpg'>
124
<img src='./qimages/3399-124.jpg'>
125
<img src='./qimages/3399-125.jpg'>
126
Absorbed wavelengths in atomic absorption spectrum appear as
dark background
dark lines
light background
light lines
127
Lines, which appear in absorption and emission spectra of a substance, have wavelengths which are
Same
Different
Very different
Far apart
128
Background in atomic absorption spectrum is
Bright
Dark
Brown
Purple
129
Which of the following physical changes is measured by TGA
Mass loss
Deformations and dimension
Heat difference
Temperature difference
130
With regard to thermal analysis a student made two statements A and B
The differential temperature is
plotted against time to obtain DTA curve.
The differential temperature is plotted against temperature to
obtain thermogram.
Select the correct answer
Both A and B are false
A is true but B is false
B is true but A is false
Both A and B are true
131
Which of the following technique is based on the measurement of temperature difference?
Thermogravimetric analysis
Differential thermal analysis
Differential scanning calorimetry
Thermo mechanical analysis
132
The incorrect statement regarding chain growth polymerization is
Same single step is repeated throughout reaction process.
Some monomer remains even at long reaction times .
Molar mass of backbone chain increases rapidly at early stage and remains approximately the same throughout the polymerization .
Initiator is required.
133
A polymer is made from the monomers terephthalic acid and ethylene glycol, with the latter being in excess.
The polymer obtained would have;
Carboxylic group at one end and hydroxyl group at the other end
Carboxylic groups at both the ends
Hydroxyl groups at the both ends
Carboxylic group at one end and ester group at the other end
134
Among the following four methods A. NMR spectroscopy B. IR spectroscopy C.Mass spectroscopy D.Titration. End group analysis is performed by
By A only
By B only
By B and C only
By all of C and D
135
Polystyrene, polyacrylonitrile and poly(vinyl chloride) prepared normally are
Mostly atactic
Mostly isotactic
Mostly syndiotactic
a 1:1 mixture of isotactic and syndiotactic
136
The catalyst for anionic polymerization is not
sodium in liquid ammonia
alkali metal alkyls
Grignard reagents
boron trifluoride and water
137
Find the point group for tetracarbonylnickel
c2v
td
d5d
c2h
138 determine the point group for
oh
td
d2h
c2v
139
What is the main result of adding surfactants into a liquid composed of two immiscible phases such as oil and water
Reduction in the interfacial tension between the phases
Increase in the interfacial tension between the phases
Catalysis of the reaction between two phases
No effect
140
<img src='./qimages/3399-140.jpg'>
141
Among the following the surfactant that will form micelles in aqueous solution at the lowest molar
concentration at ambient conditon is
<img src='./qimages/3399-141.jpg'>
142
Which of the following properties increases abruptly when micelles are formed
Conductivity
Surface tension
Osmotic pressure
SelfDiffusion
143
Which of the following factors causes CMC to increase
An increase in the number of carbon atoms in the hydrophobic tails.
The additon of electrolyte to ionic surfactants.
The existence of polar organic compounds.
Hydrophilic groups placed in the surfactant molecule centre.
144
<img src='./qimages/3399-144.jpg'>
145
<img src='./qimages/3399-145.jpg'>
146
Term Symbol for Na is
3s1
2s1/2
2p1/2
1so
147
Pick up the planar molecule
<img src='./qimages/3399-147.jpg'>
148
The strongest conjugate base is
2)CH3COO-
SO42-
NO3-
149
Identify the type of isomerism present in nitropentaammine chromium(III).
Optical isomeresim
Linkage
Ionization
Polymerization
150
Benzene diazonium sulphate on treatment with ethanol and copper powder gives
Benzene
Phenol
Chlorobenzene
Diphenyl
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