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


Other Question Papers

Subjects

  • account and business statistics
  • agri botany
  • agri chemistry
  • agricultural engineering
  • agriculture
  • agronomy
  • anaesthesiology
  • anatomy
  • athletics
  • automobile and mechanical engineering
  • biochemistry
  • biology
  • botany
  • chemical engineering
  • chemistry
  • chemsitry
  • civil engineering
  • cloth coloring and printing
  • commerce
  • community medicine
  • computer engineering
  • computer science
  • costume design and dress making
  • dentistry
  • drawing
  • drawing and painting
  • e.a.f.m
  • economics
  • electrical engineering
  • electronics and communication engineering
  • electronics engineering
  • english
  • english literature
  • entomology
  • farsi
  • football
  • forensic medicine
  • forest engineering
  • general english
  • general knowledge
  • general medicine
  • general studies
  • general surgery
  • geography
  • geology
  • gujarati
  • handball
  • hindi
  • hindi and english
  • hindi literature
  • history
  • home science
  • horticulture
  • hydrogeology
  • information technology
  • language
  • law
  • library science
  • mathematics
  • maths
  • mechanical engineering
  • microbiology
  • music
  • music instrumental
  • music vocal
  • obstetrician and gynaecology
  • ophthalmology
  • optional paper
  • orthopaedic
  • oto rhino laryngology
  • paediatrics
  • pathology
  • pharmacology
  • pharmacy
  • philosophy
  • physics
  • physiology
  • plant pathology
  • political science
  • psychology
  • public administration
  • public relation officer
  • punjabi
  • rajasthani
  • sanskrit
  • science
  • sindhi
  • social aspects of engineering
  • social science
  • sociology
  • statistics
  • textile design
  • urdu
  • volleyball
  • zoology