Rajasthan Public Service Commission 2016
Paper 73JuniorChemist
Ques
Which one of the following isoelectronic
ions has lowest value of ionization energy




...... ............. ..... .. .... .. .... .... ....... ....




Ques
Which of the following molecules has linear structure





...... . .. .... ... ... ...... ..... ....




Ques
2
4
6
8
2
4
6
8
Ques
Chlorophyll contains which of the following metals
Na

Mg
Ni
Cu
...... ...... . .. ... .. .... .......... . ....... .... ..
Na
Mg
Ni
Cu
Ques
Which of the following ion will have maximum magnetic moment



...... . .. .... ... .. ......... ..... ....... ....



Ques

dxy
dyz
dxz

dxy
dyz
dxz

Ques
Linear
V Shaped
Tetrahedral
Pyramidal
.....
V ...
...
...........
.........
Ques
Inert pair effect is maximum in

N
P
As
Bi
........
.... ..... ....... .... . ....
N
P
As
Bi
Ques
Borazole is




....... ..




Ques :10
On the basis of Molecular Orbital Theory the bond order in CO is
0

1
2
3
... ... ........ .. .... .. CO . ... ... ..
0
1
2
3
Ques :11
The basic structural unit of silicate mineral is



Si
......... ..... ... ...... ...... .... ..



Si
Ques :12
Which of the following is the strongest acid




HCl
...... . .. ..... .... ...... ..



HCl
Ques :13
Which of the following is an aprotic solvent

HF


...... . .. ... .. ....... ........ ..

HF


Ques :14
In which of the following compounds Kband
appears
Benzene
Butadiene
Mesityl oxide

All of these
...... . .. .... ...... . K.
... .... .... ..
......
..........
........ .......
..... .. ...
Ques :15
One the basis of Mossbauer Spectra the pbonding
abilities of the following ligand is maximum
CO



...... ......... .. .... .., ...... . .. .... ........ ... p ....
.... ....... ....
CO



Ques :16
Which of the following gas has maximum thermal conductivity




Ne
...... . .. .... ... ... ..... ...... ....... .... ..



Ne
Ques :17
Zeise's Salt is




... ... ..




Ques :18

Which of the following is a mixed organometallic compound




...... . .. ..... ...... ........ ........... ..




Ques :19
The emission of a beta particle from the nucleus of a radioactive element raises the positive charge by
1
2
3
4
..... ............. ...... ... ...... .. .. .... .. .. ....... .. ....... .... . ..... ....
1
2
3
4

Ques :20
Neptunium
Plutonium
Protactinium
Thorium
............
...........
..............
.......
Ques :21
Rutile is an ore of
Ti
Pt
Ni
Cr
....... .. ..... ..
Ti
Pt
Ni
Cr

Ques :22
The compound which exhibits JahnTeller
distortion is



...... . .. ...... .. .......
........ ........




Ques :23
Trigonal Bipyramidal
Distorted Tetrahedral
Square Planar
Tetrahedral
........... ..............
...... ...........

...........
...........
Ques :24
3 and 4
3 and 6
4 and 5
2 and 4
3 .. 4
3 .. 6
4 .. 5
2 .. 4
Ques :25
Vitamin B12
contains
Fe
Co
Ni
Mg
......... B12
. ....... ..

Fe
Co
Ni
Mg
Ques :26
The ratio of the number of moles consumed in the process and number of photons absorbed by it is called
Photon Energy
Photon Density
Quantum Yield
Einsteins
..... . ........ .... ... ...... ... ........ ..... ... ...... .. ...... ...... ..
..... .....
..... .....
....... .....
.........
Ques :27
Among the following complex species the one which is EPR active is




...... ..... ....... . .. .. EPR ...... ..





Ques :28
Which one is not used as radioactive isotope for Mossbauer effect:




...... . .. .... ............. .......... .. ..... ...... ..... . ..... ..... ....




Ques :29
The gas which is filled in electric bulb is
He
Ne
Ar

Rn
....... .... . .... .... ..... ... ..
He
Ne
Ar
Rn
Ques :30
AgCl is soluble in ammonia due to the formation of




........ . AgCl .. ..... .. .... ...... .. .... ..




Ques :31
Inorganic Graphite is





......... ....... ..




Ques :32
The eigen function for an electron is
A molecular orbital
An atomic orbital
Simple Wave Representation

.. ......... .. ..... ... ..
.. .......
.. ........ ....
.... .... .......

Ques :33

Zero Operator
Laplacian Operator
Hermition Operator
Homogenous Operator
..... ......
.......... ......
......... ......
...... ......
Ques :34
Out of the following complex ions which is not obeying Effective Atomic Number Rule:




...... . .. ..... ..... ... ...... ... ...... ........ ..... ......





Ques :35
The Valence bond theory is proposed by whom of the following
L. Pauling and J.L. Slater
Werner
Hans Brethe and J. Van Vleck
L. Orgel
........ ... ........ ...... . .. ...... ...... ........... ..... ...
... ........ .. ...... ......
.....
.... .... .. ... ... .....
... .....
Ques :36









Ques :37
Which one of the following is the octahedral inner orbital complex ion




...... . .. ... .. ....... ... .......... ..... ... ..




Ques :38
With which of the following water will act as a base





...... . .. ...... ... .. ... .. ... . .... .....




Ques :39
In nature Mg, Ca and Al exist as carbonate metal ores and not as metal sulphide ores due to one of the following acid base priciples
BroSnsted Laury Concept
Arrhenius Theory
Pearson Principle of SHAB
Usanovic Principle
...... . .. ..... .. ........ .. .... Mg, Ca . Al .. ....... . ........ .... ..... ...... .. . ... .... ....... .....
......... ..... .......
......... ........
....... .. .... ... .... (SHAB) .... .... ........
.......... ........
Ques :40
In 1849 Edward Frankland prepared an oraganometallic compund which is known as Frankland reagent, which is the one from following





1849 . ..... ..... .. .. ........... ...... ..... .... ..... ........ .. ... .. .... .... .. .. ...... . .. ..... ..




Ques :41
Alkenes
Alkanes
Alkyne
Alcohol
.......
......
.......

........
Ques :42
Waterglass which is soluble in water is one of the following




.. .... .. .. . ....... .., ...... . .. .. ..




Ques :43
The exact molecular weight can be determined by
IRSpectroscopy
UVVISSpectroscopy
Mass Spectroscopy
NMRSpectroscopy
..... ..... .. .... ...... .... ..... .... ..
IR
...............
UVVIS
...............


Mass ...............
NMR
...............
Ques :44
Marshall Acid is




..... .... ..




Ques :45
The highest oxidation state shown by rhenium is




.......... ... ...... ........ ...... .... ..





Ques :46
Bhopal Gas Tragedy is a case of
Thermal Pollution
Air Pollution
Nuclear Pollution
Soil Pollution
..... ... ....... .. .... ..
..... ......
.... ......
......... ......
.... ......
Ques :47









Ques :48
BOD of river is high, it means river is
Very much polluted with inorganic chemicals.
Very much polluted with organic chemical which are decomposed by micro organisms
Polluted with Pesticides
Not Polluted
..... .... .. BOD ..... .. .... ... .. ... ....
........ ..... .. .... ..... ........ ..
....... ..... .. .... ..... ........ .. .. ... ...... ........ .. ........ .. .... ..
.......... .. ........ ..
........ ..... ..
Ques :49
The metal extracted from sea water is
Mg
Al
Ba
Ca
....... .. .. ........... ..... .... .... .... ..
Mg
Al
Ba
Ca

Ques :50
Fertilizer having the highest nitrogen percentage is
Calcium Cyanide
Urea
Ammonium Nitrate
Ammonium Sulphate
..... ..... ........ ... ....... ..... ....... ..
........ .......
.......
........ .......
........ ......
Ques :51
The decrease in the value of molar extinction coefficient of an absorption band due to substitution in a molecule is called
Bathochromic Shift
Hypochromic Shift
Hypsochromic Shift
Hyperchromic Shift
..... ... . .... .. ........... .. .... ...... .... .. .... ....... ...... .. ... . .. ... .. .... ..
.......... .........
............ .........
.............. .........
............ .........
Ques :52
Which of the following vibrations is of the highest energy requirement

Symmetric Stretching
Asymmetric Stretching
Twisting
Wagging
.......... . .. .... ..... . .... ..... .... ... ........ .... ..
...... ...
....... ...
........
........
Ques :53
Which compound gives more than one signal in its NMR Spectrum




..... ...... NMR ......... . .. .. ..... .... .... ..





Ques :54
Mass Spectrometry
Mossbauer Spectroscopy
Electro Spin Resonance Spectroscopy
Nuclear Magnetic Resonance Spectroscopy
........ ...............
...... ..............
......... .... ...... ..............
......... ......... ...... ..............

Ques :55
What is the pH of normal rain water
4.3
5.6
7.0
7.5
....... ......
.. pH .... ..
4.3
5.6
7.0
7.5
Ques :56
Which of the following gases is not a 'primary' green house gas




.......... . .. ... ... ... '........' .... .... ... ..... ..




Ques :57

Which set of gases is the main cause of acid rain in atomsphere




........ . ... .. ... .. ... .... ...
. .. ..... .... ..




Ques :58
The global warming is due to
Heavy Rainfall



...... ........ .. .... ..
........ .....




Ques :59
What is the largest constituent of potato
Protein
Carbohydrate
VitaminA
Minerals
... . ... .. .... .... ..... ..... . ..
.......
............
.........A
..... ...
Ques :60
John Napier is an inventor of
Algorithm
Logarithm
Algebra
Trignometry
... ....... ....... ..
...........
......
........
.............
Ques :61

The clock speed in microcomputer is measured in
MHz
Bit
MIPs
MFLOPs
.............. ... ... .. ... .... .... ..
MHz ...
Bit ...
MIPs ...
MFLOPs ...
Ques :62
Which of the following is not a computer language
COBOL
FORTRAN
BASIC
WS
............. . .. ... .. ........ ... .... ..... ..
COBOL
FORTRAN
BASIC
WS
Ques :63
Which property of a substance is measured in thermogravimetric analysis
Change in temperature
Change in weight

Heat evolved or absorved
Heating Rate
..... .. ... .. ... ........... ......... ...... ...... .... ..... .... ..
... ... .........
... ... .........
..... .. ........ . ......
.... ..
Ques :64
The common temperature detection devices used in DTA are
Thermocouples
Thermopiles
Thermistors
All of these
DTA . ......... ... ...... .... ..
.....
..... .....
.....
..... ....
........
...
Ques :65
Which radiations of electromagnetic spectrum is used in Mossbauer spectroscopy
Radiowaves
Microwaves
XRays
Gamma Rays

................. ......... .. ... .. ........ ...... .............. . ....... .... ..
...........
..........
....
.....
....
.....
Ques :66
Which is not a photochemical reaction
Photosynthesis in plants
Conversion of cholesterol in our skin into vitamin D
Effect of rhodopsin and iodospin in rhods and cones cells of our eyes
Conversion of starch into glucose in our stomach.
... .. ..... ......... .......... ..... ..
...... ... ..... ........
...... ..... ... .......... .. .........D
... ........
...... ..... ... ... ... ... ......... .. ......... ... .......... .. .....
..... ... ... ....... .. ....... ... ........
Ques :67
Forensic scientists use the reaction of luminol to detect blood at crime scenes. It is an example of
Phosphorescence
Fluorescence
Chemiluminescence
Intersystem Crossing
..... ..... .. ...... ........... .. ...... .......... .......... .. ..... .... ... ... ... ..... .... .... ..... .. ...... ..
............

............
......... .........
..... .... ....
Ques :68
The phosphorescence spectrum of the excited species is due to
Singlet to triplet transitions
Triplet to Single transitions
Electron Spin transitions
Nuclear Spin transitions
............ ......... . ........ ....... ...... .... ..
... .. ..... ...... ..
..... .. ... ...... ..
......... ...... ...... ..
......... ...... ...... ..
Ques :69
Sugarfree sweetner which has chlorine atoms in its structure
Saccharin
Alitane
Sucralose
Aspartame
.......... ......., ...... ...... . ........ ...... .... ..
........
.......
........

.........
Ques :70
The term analyte' is used in TLC for the
compound to be purified
solvent run in column
Adsorbent filled in column
Retention factor
TLC . .. '..........' ..... ..... .... ..
...... ..... .... .... ..
....... ..... ...... ... ........ .... ...
........ ..... ...... ... .... ..
.... ... ..
Ques :71
Column Chromatography
Thin Layer Chromatography
Gas Chromatography
Ion Exchange Chromatography
..... ........
... ..... ........
... ........
... ........ ........

Ques :72
Who got Nobel Prize for inventing partition and thin layer Chromatography
Paul J. Flory
D.H.R. Barton and O. Hassel
Arthur Harden and H. Von Euler Chelpin
A.J.P. Martin and R.L.M. Synge
....... ... ....... ............. ... ... .. ..... ...... ..... ........ .....
... ... .......
......... ...... ... .. ....
..... ...... ... ... ... .... .......
.. ...... ........ ... ...... ... .....
Ques :73
Photochemical isomerization
Photochemical rearrangement
Photochemical Reduction
Photochemical oxidation

........... ..........
........... ...........
........... .....
........... ........
Ques :74
On photolysis hexan2one
gives propene and acetone. The process is known as
Norrish type I process
Norrish type II process
Mc Lafferty rearrangement
Photochemical isomerizations
.......2..
..... ..... .. ...... ... ...... .... .. . .. ..... .. .... ..
...... .... I .....
...... .... II .....
... ...... ...........
........... ..........
Ques :75
In nature the principal decomposition product of DDT is
Aldrin
Dieldrin

Chlordan
DDE
....... . DDT .. ..... ....... ...... ..
.......
..........
.........
DDE
Ques :76
The energy produced in the Sun and stars is due to
Nuclear Fusion
Nuclear Fission
Photochemical Reaction
Thermal Chemical Reaction
.... . ..... . ....... .... .. .... ..
......... .....
......... .......
..... ......... ..........
...... ......... ..........
Ques :77
3 fm
4.5 fm
4 fm
5 fm

3 fm
4.5 fm
4 fm
5 fm
Ques :78
isotopes
isotones
isobars
isosters
.......
.......
.......
..........
Ques :79
127
128
129

130
127
128
129
130
Ques :80
'Fat man' relates to
PuBomb
UBomb
HBomb
ThBomb
... ... ...... .. ......... ..
Pu..
U..
H..
Th..
Ques :81
The sqaure of standard deviation is called
Variance
Precision
Regression
Relative Standard Deviation

.... ...... .. ... ...... ..
.....
.........
.......
........ .... ......
Ques :82
Which of the following is not considered as determinate error
Operational Error
Additive Error
Proportional Error
Random Error
............. . .. ... .. ....... ...... ..... .... .... ..
.......... ......
........ ......
......... ......
......... ......
Ques :83
In which of the following numbers all zeros are significant
0.0005
0.0500
50.000
0.0050
...... ........ . .... . ... ..... ..... ..
0.0005

0.0500
50.000
0.0050
Ques :84
Mathemetically the standard deviation is represented by




....... .... .. .... ...... .. ........ .... ..





Ques :85
The electrons which contribute to isomer shift in Mossbauer spectroscopy are
selectrons
pelectrons
delectrons
felectrons
...... .............. . ......... .. ....... ..... . ...... .... ..
s...
......
p...
......
d...
......
f...
......
Ques :86









Ques :87
I.R. region
Visible region
U.V. region
None of these
I.R. ..... ...
..... ..... ...
U.V. ..... ...
.... .. ... .....
Ques :88
Movement of nuclei is negligible during the time taken by the electronic transition, it is called
Franck Condon Principle
Born Oppenheimer approximation
Lamberts Beers
Law

Huckel Approximation
............ ...... . .... .. ... . ...... ... .... ..... .... .., ... .... ..
..... ....... ........
..... ......... ........
......... ..... .....
.... ........
Ques :89
The region extending from 380nm to 750nm is called
Near U.V.
Quartz U.V.
I.R.
Visible Region
380 nm .. 750 nm .... .. .... ..
... U.V.
........ U.V.
I.R.
..... .....
Ques :90
The most widely used flame in atomic absorption is
Airacetylene
Air Propane
Air coal gas
Oxyacetylene

......... ...... . ....... ..... . ... ..... ...... ..
.....
..........
....
......
..........
..... ...........
Ques :91
Copper Couple
Paltinum Couple
ChromelAlumel
Couple
None of these
...... .....
......... .....
...... ........ .....
.... .. ... .....
Ques :92
The molecule which is IR inactive but Raman active is

HCl


Protein
... .. ... ...... ... ... ... ......... ..

HCl

.......
Ques :93
Which of the following statement is incorrect
DTA curves are influenced by heating rate
Peak area decreases with increasing particle size
DTA curves are influenced by chart speed
Peak area does not depend on quantity of sample
...... . .. ... .. ... ... ..
DTA ...... .... .. .. ........ .... ...
.. .... .. .... .. ... ..... ..... .... ..
DTA ...... ..... ... .... .. ........ .... ...
..... ..... ......... ..... .. ....... ..... .... ...
Ques :94
The full form of RIA is
Radio Immuno Assay
Radio Immuno Analysis
Radio Isotope Analysis
None of these

RIA .. .... ... ..
....... ....... ...
....... ....... ..........
....... ....... ..........
.... .. ... .....
Ques :95
The ability of water to absorb hydrogen ions without significant pH change is called
Acidity
Alkalinity
Neutrality
None of these
.. .. ........ ... .. ...... .... ... ....... ..... pH . ..... ..... ..... .... ...... ..
.........
......
........
.... .. ... .....
Ques :96
1.5
1.0
0.1
2.0

1.5
1.0
0.1
2.0
Ques :97
If a photochemical reaction has higher quantum yield than unity, it indicates
A reversible reaction
An elementary reaction
A chain reaction
None of these
..... ..... ......... .......... ... ....... ..... .. .. ..... .. .. ...... ..
.. ......... ..........
.. ......... ..........
.. ....... ..........
.... .. ... .....
Ques :98
Which of the following is Inter System Crossing





............. . .. ..... ........
.. .... ..




Ques :99
Which one the following excited state has a long life




............. . .. .... ........ ...... ... ..... ... ..




Ques :100
Radio carbon dating was developed by

M. Curie
M. Calvin
H. Becquereel
W. F. Libby
....... ..... .. ........... ...... .....
... .......
... .......
... .........
......... .......