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Rajasthan Public Service Commission 2016
Paper ChemistryI
Ques: 150
Time: 3 Hours
Ques
The correct sequence of first ionisation energies of following elements is
Mg Na Al P S
P S Mg Al Na
Na Mg Al P S
Na Al Mg S P
............. .... ... .... .... ... .. .... ... ..
Mg Na Al P S
P S Mg Al Na
Na Mg Al P S
Na Al Mg S P
Ques
Which of the following elements have positive value of first electron affinity
Li
Be
B
C
............. . .. ..... ...... ... .... ......... ....... .. ... ....... ..
Li
Be
B
C
Ques
Select the incorrect statement
Large negative ion favours covalency.
Large positive ion favours covalency.
Large charge on positive ion favours covalency.
Large charge on negative ion favours covalency.
..... ... .. ... .......
... ..... .......... .. ... . .... .. .
... ..... .......... .. ... . .... .. .
..... .. . .. .... .......... .. ... . .... .. .
..... .. . .. .... .......... .. ... . .... .. .
Ques
Which of the following has largest bond angle




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




Ques
The ion having largest ionic radius among the following is




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




Ques
Which element out of the following will have lowest value of ionic radius for its tripositive ion
Yb
Ho
Sm
Pr
............. . .. .. ...... .. ........... ... ... ...... ........ .. ... .... .. ....
Yb
Ho
Sm
Pr
Ques
The correct decreasing order of electronegativity for following elements of first group of periodic table is
Li Na Rb Cs
K Na Rb Cs
Cs K Na Li
Rb Cs K Na
... ..... .. .... .. .. ............. .... ... .... ......... .. .... .... ... ..
Li Na Rb Cs
K Na Rb Cs
Cs K Na Li
Rb Cs K Na
Ques
Which of the following properties show only an increasing trend from right to left in the third period of
periodic table
Electronegativity
Ionisation Energy
Atomic Radius
Density

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............. . .. ..... ... ... ..... .. ..... ... . ... .. ... .... .... ... ...... . .... ..
...... .........
.... ...
......... ........
.....
Ques








Ques :10
The molecule shows the paramagnetic behavior is




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




Ques :11
Which of the following is diamagnetic in nature




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




Ques :12


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Ques :13
Select the correct statement




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




Ques :14
According to VSEPR theory a molecule will have a regular shape if its central atom is surrounded by
more bonding electron pairs than the lone pairs of electrons.
less bonding electron pairs than the lone pairs of electrons.
equal number of bonding electron pairs and lone pairs of electrons.
only bonding electron pairs.
VSEPR ...... .. ...... ... ... ... ...... .. .... .... .... ...... ...... ..... ..
...... ......... ....... ... .... . .. .... ......... ....... .. .
...... ......... ....... ... .... .. .... ......... ....... .. .
.... ......... ....... .. ...... ......... ....... ... ..... ...... .. .
.... .... ......... ....... .. .
Ques :15
Which of the following molecules/ion does not have a regular shape




............. . .. .. .../... ... ...... .. ..... ..




Ques :16

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Which pair out of the following has similar shape and also same hybridisation of their central atoms




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




Ques :17
0 2 4
4 2 0
2 4 0
2 0 4
0 2 4
4 2 0
2 4 0
2 0 4
Ques :18
The set showing correct order of increasing bond order is




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




Ques :19
Which of the following is the strongest base




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




Ques :20

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Select the correct statement




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




Ques :21
Select the pair of soft bases




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




Ques :22








Ques :23
Which of the following is most acidic in nature




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





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Ques :24
Which of the following is a Lewis base
Sulphur dioxide
Sulphur trioxide
Carbon monoxide
Carbon dioxide
............. . .. ... .. .... ... ..
..... ..........
..... ...........
... . ...........
... . ..........
Ques :25
Which combination is most stable
NaI
KI
RbI
CsI
..... ..... .... . .. ...... ..
NaI
KI
RbI
CsI
Ques :26
According to Bronsted and Lowry acid out of the following is




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




Ques :27
Which of the following set does not represent the acid strength correctly




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




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Ques :28
Which of the following is a group of soft acids




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




Ques :29
The group of soft bases is




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




Ques :30
The correct outer electronic configration for Ni and Pt are respectively




Ni ... Pt .. .... .... .. . ......... ...... ..... ..




Ques :31
Which of the following possesses highest magnetic moment




............. . .. .... ......... .... .... . .. ..
1

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Ques :32








Ques :33
5d 4d 3d
4d 5d 3d
3d 4d 5d
3d 5d 4d
5d 4d 3d
4d 5d 3d
3d 4d 5d
3d 5d 4d
Ques :34
Geometrical isomerism
Optical isomerism
Both Geometrical isomerism and Optical isomerism
Does not exhibit Both Geometrical isomerism and Optical isomerism
.......... ........
........ ........
.......... ... ........ ..... ........
.......... ... ........ ........ ..... ..... ... ..
Ques :35

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6 0
4 2
3 3
5 1
6 0
4 2
3 3
5 1
Ques :36
One
Two
Three
Four
..
..
...
...
Ques :37
factriamminetrinitritoruthenium

mer triamminetrinitritoruthenium

factrinitritotriammineruthenium

mertrinitritotriammineruthenium

...... ................................
......... ................................
...... ................................

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......... ................................
Ques :38
Colourless Pink
Colourless Blue
Blue Pink
Pink Blue
....... ......
....... ....
.... ......
...... ....
Ques :39
The set of elements having 5 electrons in their outer dorbitals
is
Cr Mn Tc
Fe Mo, Re
Cr, Mn Mo
Mn Nb, W
.... .. .... ..... .. . d.
. . 5 ......... ..
Cr Mn Tc
Fe Mo, Re
Cr, Mn Mo
Mn Nb, W
Ques :40
Which of the following is a set of coloured ions




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



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Ques :41
Which of the following will give maximum number of ions per molecule in its aqueous solution




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




Ques :42
4 4
2 4
4 2
2 2
4 4
2 4
4 2
2 2
Ques :43
The complex ion or molecule having square planar shape is




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




Ques :44
Number of methyl groups present in a molecule of 2,2,7trimethyl
oct6en4yn3ol
are
3
4
5

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6

...... .. ....6..4...3..
.. .. ... . ....... .. .. .... ... ...... ..
3
4
5
6
Ques :45
tetra propyl carbon
tetra propyl methane
4,4di
npropyl
heptane
4nbutyl4ethyl
heptane
........ .. ... .
........ .. .....
4,4...
n
... .. .......
4n
........4.
.. .......
Ques :46
The groups showing electron releasing inductive effect are




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




Ques :47
What is not correct about electromeric effect out of the following
Presence of multiple bond is essential .
Outer attacking reagent is required.
it is a permanent effect.

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

Ques :48
Most strong acid out of the following is
o nitrobenzoic
acid

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m aminobenzoic
acid
p nitrobenzoic
acid
p methoxybenzoic
acid
............. . .. .... . .. .... .... ..
o...
........ ....
m .......
.... ....
p ...
........ ....
p ....
......... ....
Ques :49
The group showing positive mesomeric effect is




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




Ques :50
What is not true for hyperconjugation
It is also known as nobond
resonance.

It gives stablity to the molecule
It is a pseudo type of effect.
.... ........ .. .... .... .... ..... ..
.. ........
...... .. ...... .. .

.. ... .. .......... ..... .... .. .
.. .. .... ..... .. ..... .. .
Ques :51
The nucleophile out of the following is




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




Ques :52

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Which of the following has highest boiling point
npentane
diethyl ether
nbutyraldehyde
nbutyl
alcohol
............. . .. .... ........ ...... ..
n.
...
.... .. ...
n
.................
n
........ ........
Ques :53
Which of the following compund has lowest boiling point
ocresol
pcresol
mbromophenol
pbromophenol
............. .. .. . .. .... ........ ........ ..
o
.....
p
.....
m
...........
p
...........
Ques :54
The ratio of carbon atoms in napthalene anthracene and diphenyl molecules is
4 5 6
5 7 6
6 7 5
4 6 5
.......... ....... .. ......... .. ..... . ... . .. ........ .. ...... ..
4 5 6
5 7 6
6 7 5
4 6 5
Ques :55
Which of the following compund is not aromatic according to Huckel 4n+2 rule
Pyridine
Anthracene
Pyrrole
Cycloheptatriene
... 4n+2 ..... .. ...... ............. . .. ..... .. .. ......... .... ..
.......
.......
......
..................

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Ques :56
The most stable carbanion among the following is




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




Ques :57
Which of the following bonds possesses highest value of bond energy
CF
CCl
CBr
CN
............. . .. .. ..... ... ..... ... .. ... .... . .. ..
CF
CCl
CBr
CN
Ques :58








Ques :59
Following compound exhibits intramolecular hydrogen bonding
Chloroform
Chloral
Chloral hydrate
pchlorophenol
............. .. .. ......... ........ ... ... .. ..


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.........
......
...... .......
p
............
Ques :60
Incorrect statement regarding Stobbe condenastion is
It is a condensation between dialkyl succinate and aldehyde or ketone.


The condensation is carried out in presence of a base.
...... ..... .. ....... . ... ... ..
.. ......... ........ ... ......... .. ...... .. ... ..... .. .


..... .. ... ... ......... . .... .. .
Ques :61
Cannizzaro's reaction is not given by




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




Ques :62
The product of Dieckmann reaction is




L..... .... .... .. ...... ..



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Ques :63
Wittig reaction is used for the preparation of
Alkanes
Alkenes
Alkynes
Aldehydes
..... .... .... ............. .. .... . ....... .... ..
......
.......
.......
.........
Ques :64
The main product of Reformatsky reaction is




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




Ques :65
Hoffmann's Reaction
Curtious Reaction
Perkin's Reaction
Schmidt's Reaction
...... .... ..
.... .. .... ..
. . . .... ..
..... .... ..
Ques :66
In BaeyerVilliger
oxidation following conversion takes place
aldehyde to acid
ketone to acid

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ketone to ester
Alcohol to ketone
.... ...... ..... . ............. ...... . .... ..
......... .. ....
...... .. ....
...... .. .....
........ .. ......
Ques :67
Ratio of hydrogen carbon and nitrogen atoms in a molecule of pyrrole is
5 4 1
2 3 4
4 5 1
2 4 5
...... .. .. ... . ........ ... . .. ........ .. ........ .. ...... .... ..
5 4 1
2 3 4
4 5 1
2 4 5
Ques :68
The formation of cyanohydrin from ketone is an example of
electrophilic addition
nucleophilic addition
nucleophilic substitution
electrophilic substitution
...... .. ........L... .... ..... ...... ..
.........
....... ...
......
....... ...
......
....... ...........
.........
....... ...........
Ques :69
A compound X on aldol condensation forms a compund Y which on dehydration gives 2butenal
. X and Y
are respectively

Ethanal and 4hydroxy4methyl2pentanone
Propanone and aldol
Propanone and 3hydroxybutanal
.. .. .. X ...... ..... .. .. .. .. Y .... .., .. .... ...... .. 2
......... .... .. . .. .. X
.. Y ..... ..

...... .. 4...
.......4..
..2.
.....
........ .. ......
........ .. 3...
...............

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Ques :70
Formaldehyde undergoes Cannizzaro reaction in presence of concentrated NaOH solution to form
Methanol only
methanoic acid only
Ethanol and sodium formate
methanol and sodium formate
..........., ..... NaOH ... ......... . ......... .... .... .... ..... ..
.... .......
.... ........ ....
...... .. ..L... ....
....... .. ..L... ....
Ques :71
Benzaldehyde reacts with acetic anhydride in presence of sodium acetate to form 3phenylpropenoic
acid .
This is an example of
Wittig Reaction
Crossed Aldol Condensation
Perkin Condensation
Claisen Condensation
........... ..L... ...... ... ......... . ........ .......... .. .... .... .... 3..
....... .....
.... ..... .. . .. ..... ...... ..
..... .... ..
..... ...... .....
. . . .....
...... .....
Ques :72








Ques :73
Alizarin belongs to
Phthalocyanine dyes
Anthraquinoid dyes

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Indigoid dyes
Azine dyes
......... ............. .. ..... .. ..
........... ....
............. ....
......... ....
.... ....
Ques :74
When chlorine is passed into a cold solution of anthracene in carbondisulphide following is obtained
phenanthrene
anthracene monochloride
anthracene trichloride
anthracene dichloride
... . .......... . ........ .. ..... .... . .. ........ ........ ... .... .. .. ...... .... ..
.....
........ ............
........ ............
........ ...........
Ques :75
When benzenediazonium sulphate is warmed in ethanol with copper powder the product obtained is




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




Ques :76
Furan undergoes the Gattermann reaction to give
Furoic acid
Furfural
acyl furan
tetrahydrofuran
....... ... ....... .... .... .. .... .... ...... ....
........ ....
........
............
..................

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Ques :77
Which of the following does not undergo DielsAlder
reaction
1,3butadiene
Cyclopentadiene
Furan
Thiophene
............. . .. ... ......
.... .... .... ..... ... .. ..
1,3
..........
.................
.......
........
Ques :78








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Ques :79
When mixture of acetylene and hydrogen cyanide is passed through a red hot tube, the product is
pyrrole
vinyl cyanide
pyridine
acraldehyde
.. .......... ... ........ ....... .. ...... .... .... .... . .. ........ ... .... .. .. .... ....
...... ..
....
....... .......
.......
..........
Ques :80
pyrrole
pyridine
piperidine
quinoline
....
.......
. .......
..........
Ques :81
Oxindole is almost completely represented by following structure:




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




Ques :82
Pyridine when heated with excess of sodamide in toluene solution it forms
2amidopyridine
4amidopyridine
2,4diaminopyridine
2,6diaminopyridine
....... .. .. ........ .. . .... . ...... . ... ... .... .. .. ............. ...... .... ..
2......
.......
4......
.......
2,4.........
.......
2,6.........
.......
Ques :83
The FriedelCrafts
reaction of benzyl chloride gives
diphenylethane
dichloro anthracene
anthracene
mixture of diphenylethane dichloro anthracene and anthracene
.... ........ ... ...... ....... .... .... .. ...... .... ..
......... ....
......... ........
........
......... .... ......... ........ .. ........ .. ......
Ques :84

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When furan reacts with nbutyllithium
the product formed are/is
Furoic Acid

2butyl
derivative
2lithium5butyl
derivative
.. ....... n
........ ... ... .. .... .... .... .. .. .... ..../.... ...... ..
........ ....

2
........ ..........
2...
...5
........ ..........
Ques :85
When thiophene is reduced with hydrogen gas in presence of Raney nickel it forms
butane and nickel sulphide
butene and hydrogen sulphide
diethyl sulphide
dibutyl sulphide
.. ........ .. .... ..... ... ......... . ........ .. .... ..... .... .., .. ...... .... ..
....... .. ..... .......
........ .. ........ .......
.... .. .......
........... .......
Ques :86
Which of the following is not correct for pyridine
It is basic in nature.
It resembles benzene in many of its properties.
It is formed by passing a mixture of ethylene and HCN through a red hot tube.
When heated with nbutyl
lithium, it forms 2nbutylpyridine.
....... .. .... ............. . .. .... .... ..... ..
.. ...... ....... ... .. .
.... .... .. ... .... .. ...... .. .
... ..... .. .... ....... .. HCN .. ...... .. .... .... .... .. ........ ... .... .. .
.. ... n
........ ... ... .. ... ... ... .... .. .. .. 2n
........ ....... ..... ..
Ques :87
R and S
R and R
S and R
S and S

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R .. S
R .. R
S .. R
S .. S
Ques :88
2S 3S
2R 3R
3S 2R
2S 3R
2S 3S
2R 3R
3S 2R
2S 3R
Ques :89
Z,E2,4hexadiene
E,Z2,4hexadiene
Z,Z2,4hexadiene
E,E2,4hexadiene
Z,E2,4..
.........

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E,Z2,4..
.........
Z,Z2,4..
.........
E,E2,4..
.........
Ques :90
(E)1bromo1
2dichloroethene
(Z)1bromo1
2dichloroethene
(E)2bromo1
2dichloroethene
(Z)2bromo1
2dichloroethene

.....1
2...
..........

.....1
2...
..........

.....1
2...
..........

.....1
2...
..........
Ques :91
E Z Z
E Z E
Z E E
Z E Z
E Z Z
E Z E
Z E E

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Z E Z
Ques :92
Select the wrong statement among the following
2chloropropane
has a plane of symmetry .
2chloropropane
is achiral.
2chlorobutane
does not possess a plane of symmetry.
2chlorobutane
is achiral.
............. . .. ... ... .. ... .......
2
............ . ........ .. .... .. .
2
............ . ... .. .
2
............. . ........ .. ..... .... .. .
2
............. . ... .. .
Ques :93
Which of the following groups is an auxochrome




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




Ques :94
The different kinds of environment of hydrogen atoms in the molecule in NMR spectra is given by
Number of signals
Intensity of signals
Height of the signals
Broadness of the signals
......... ......... . ... .. ........ ........ .. ....... ..... .. ....... .. ..... ..... ....
..
......... ... ......
......... ... ......
......... ... .....
......... ... .....
Ques :95
Number of signals in NMR spectra of ethanol is
1
2
3
6

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...... .. ......... ......... . ....... ... ...... .... ..
1
2
3
6
Ques :96
The range of finger print region in IR spectra is




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




Ques :97
The value of M/Z for the molecular ion gives for a compound
Number of protons
Molecular weight
Number of atoms
Molecular Formula
.. .. ... .. .... M/Z .. ... ... .. .. .. .... .... ..
........ ... ......
.. .. ...
........ ... ......
... ....
Ques :98
The intensity of M 1 peak can be used to know the number of
C atoms only
N atoms only
Both C and N atoms
H atoms only
M 1 ... ... ...... .. ..... ...... ...... ..... .... ... .... ..
.... C ......
.... N ......
C .. N ..... ......
.... H ......
Ques :99
The free radical intermediates in chemical reactions are best detected by
IR Spectroscopy
NMR Spectroscopy

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ESR Spectroscopy
UVVisible
Spectroscopy
......... .... ...... . ..... .... ....... . .. .... ..... ... .. ...... .... ..
...... ............... ..
......... ............... ..
........ ............... ..
...........
(UVVisible)
............... ..
Ques :100
alpha particle bombardment
deutron bombardment
proton bombardment
neutron bombardment
..... .. .......
........ .......
...... .......
........ .......
Ques :101








Ques :102
The SI unit of radioactivity is
Becquerel
curie

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microcurie
disintegrations per minute
..L........ .... .. ...... ..... ..
......
.......
...........
.... ..... .....
Ques :103
Which of the following nucleide shows branching decay




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




Ques :104
The last member of radioactive disintegration thorium series is




..L......... .... ....... ..... .. ...... ..... ..




Ques :105
Obstruction in blood circulation may be diagnosed by injecting a salt containing




............. . .. ... .. ... .. ... ....... ..... . ....... (.....) .... .. .... ......... .
..... .. ... ..... .. .... ..




Ques :106

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If mass of a proton is p amu mass of neutron is n amu and mass of a nucleus is N amu then binding energy
of the nucleus is E amu x 931.5MeV Here E is (where Z atomic number and A mass number
[Zp
N
Zp N
AZ)
n

Zp

[Zp
N
.... .. ...... .. ........ p amu .. ........ .. ........ n amu .. .. ...... .. ........ N amu ..
.. ...... ... .... ... E amu x 931.5MeV .. .... E ..
.... Z ...... ...... ... A ........
...... ..
[Zp
N
Zp N
AZ)
n

Zp

[Zp
N
Ques :107
What is not correct for a nuclear reaction
It is related with radiations.
It must be balanced in terms of both mass and energy.
Energy changes in it are far large as compared to energy changes in chemical reactions.
It is influenced by external conditions like atmospheric pressure.
.. ......... ..... .... .... .. .... .... .... .... ..
.. . ... .. ..... .. .. .
.. ........ .. ... ..... ... ....... .. ........ .... ...... .
... .... .... ... ...... . ......... .... .... . .... .... ... ...... ... ... ..... . ....
. .. .... .. .
.. ...... .............. .... ........... ... .. .... .. .... .. .
Ques :108
What is not correct for nuclear fusion
It occurs in the nuclei of light elements.
In such reactions percentage efficiency of the energy conversion is very high.
It can be initiated at any temperature .
Heavy nuclei are formed in such reactions apart from the release of heavy amount of energy .
......... ..... .. .... .... .... ..... ..
.. .... ...... .. ........ . .... .. .
... .... .... . ... ...... . ... ....... ... .... .... .... .. .
.. ... .. ... .. .... ... .. .... .. .
... .... .... . ... ... ..... ..... ....... .. ..... ..... ........ .. ..... . .... .. .
Ques :109



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Ques :110








Ques :111








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Ques :112
At a given temperature the rate constant of a given reaction in general is equal to the rate of the reaction
when
all reactants are in same quantity.
all reactants are in same state.
concentration of all reactants is same .
concentration of all reactants is unity.
... .... .. ... .. ... .. .... .... .. .. ........ ......... .... .... ... .. .. ..... .... .. ..
... ........ .... ..... . ... .
... ........ .... ...... . ... .
... .......... ... ....... .... .. .
... .......... ... ....... .... .. .
Ques :113
Unit for rate constant of zero order reaction is




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




Ques :114
Zero order reaction means
The reactants becomes zero at the end of reaction.
The molecularity of reaction is 1.
The rate of reaction is proportional to zero power of the concentration of reactant.
Rate constant is 1.
..... ..... .... .... .. .. ..
.... .. .. ... . ........ ..... .. .... .. .
.... .. ... .......... 1 .... .. .
.... .. ... .. ........ ... ....... ... ..... ... .. ......... .... .. .
.. ........ 1 .... .. .
Ques :115
According to the salt effect the rate constant will be independent of the charges on ions if
the two reactant ions have positive charges.
the two reactant ions have negative charges.
one reacting ion has positive charge and the other having negative charge.
one reacting ion is reacting with neutral molecule.

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Ques :116
What is incorrect from the view point of the Collision Theory of chemical reactions
It is based on the kinetic theory of gases.
It assumes that reactant molecules are hard spheres and reactions occurs due to their collisions.
All collisions of reacting molecules result into products.
Increase in temperature increases the rate of reaction.
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Ques :117
What is not correct for the theory of absolute reaction rates

It was developed by Eyring and Polanyi in 1935.
It is also known as the Transition State Theory or the Activated Complex Theory.
The activated complex formed by the reactant molecules has low energy than the energy of reactants but more
than the energy of the products.
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Ques :118
zero order reaction
second order reaction
pseudo first order reaction
none of these

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Ques :119
Which of the following reactions corresponds to the definition of enthalpy of foramtion




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Ques :120
The species which has zero standard molar enthalpy of formation at 298 K is




............. . .. .. ... .... .... ..... ......... .. ... 298K .. ..... ..




Ques :121
676.5
kJ
676.5 kJ
110.5 kJ
110.5
kJ
676.5
kJ
676.5 kJ
110.5 kJ

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110.5
kJ
Ques :122
The enthalpy of neutralization of which of the following acid and base is nearly 13.6
Kcal
HCN NaOH
HCl KOH


............. . .. .. .... ... ... ... .......... ......... .. ... .... 13.6
Kcal ..
HCN NaOH
HCl KOH


Ques :123
Berthlot's equation of state can be given by




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




Ques :124
JouleThomson
expansion is
Isobaric
Isenthalpic
Isothermal
Isothermal and Isobaric
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Ques :125

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Integrated Arrhenius equation helps us to
find out order of the reaction.
find out energy of activation if rate constant at two different temperatures is given.
know the molecularity of the reaction.
find out the rate of reaction at different temperatures.
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Ques :126
What is not true for thermodynamics
It is related to flow of heat.
It deals with energy changes accompanying all types of physical and chemical processes.
Its laws are applicable on matter in bulk as well as on individual atoms and molecules.
It helps in predicting the feasibility of a chemical reaction under the given conditions.
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Ques :127
Heat Capacity of a system between two temperatures can be given by




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




Ques :128
Which statement related to thermodynamics is not correct
The difference between molar heat capacities of one mole of a gas at constant pressure and at constant volume
is equal to the gas constant.
First law of thermodynamics gives no idea about the direction of flow of heat.
Second law of thermodynamics helps to predict whether a given process or a chemical reaction can occur
spontaneously.
Heat is a typical form of energy which can be completely transformed to work.

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Ques :129
Which of the following process is neither spontaneous nor irrreversible
Water flows down from a hill.

Diffusion of solute from a more concentrated solution to less concentrated solution when these are brought
into contact.
None of these.
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Ques :130








Ques :131

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Ques :132
Which of the following is used as anode in a commonly used mercury cell
Zincamalgam
carbon
paste of HgO and carbon
Zinc oxide
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... .
HgO .. ... . .. .....
.... .......
Ques :133
What is not correct related to strong electrolytes
Arrhenius theory is proved to be valid when applied to strongly dissociated electrolytes.
DebyeHuckel
theory of strong electrolytes assumes that strong electrolytes are completely dissociated in
solution.
Ions are not equivalent to molecules in their influence on thermodynamic properties.
Ions are not equivalent to molecules in their influence on transport of ions.
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Ques :134
Which of the following step is not involved in rusting of iron





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Ques :135
Electrode concentration cell
cell with transference
cell without transference
electrolyte concentration cell
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Ques :136
Which of the following is expected to have highest reduction electrode potential at 298 K




298 K .. ............. . .. .... ..... ......... ... ...... ... . ..




Ques :137
Which of the following set of cell reactions is not written corretly





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Ques :138








Ques :139
Most abundant element on the earthcrust
is
Fe
Al
Si
O
....
... . .... ..... ..... . .... .... .... ...... ..
Fe
Al
Si
O
Ques :140
In biological fixation of nitrogen the nitrogen is initially converted into




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Ques :141
Exposure to vinyl chloride vapours carries a risk of following cancer
Liver
Lung
Bladder
Marrow
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Ques :142
The average concentration of following constituents of photochemical smog is in the sequence given below




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Ques :143
During ozone depletion process in nature by chlorofluorocarbons following free radicals are formed except
the




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




Ques :144

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Haemoglobin has about 210 times more affinity with the following gas than for oxygen




............. . ............. ... .. ..... ....... ....... ... ..... . .... 210 .... . .. ..




Ques :145
Bhopal's Union Carbide Plant was a manufacturing unit for the following insecticide
Methiocarb
Aldrin
Carbaryl
Dementon
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Ques :146
The greenhouse contribution of following gas is maximum




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




Ques :147
Stratosphere lies between
troposphere and mesosphere
thermosphere and mesosphere
thermosphere and exosphere
exosphere and mesosphere
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Ques :148
Which of the following set belongs to greenhouse gases




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




Ques :149
In ozone layer a pollutant X under the infulence of ultra violet radiation form chlorine atoms which react
with ozone molecules to form oxygen gas and Y molecules. X and Y respectively are




.... ... . .. ...... X ........ . ... .. ..... . ........ ........ .. ..... . .... .. . ..
.... .. ..... .. .... .... .. ....... ... .. Y .. ... .... .. . X .. Y ..... ..




Ques :150
Succinic Acid
Formic acid
Benzoic Acid
Cinnamic acid
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