SSB Odisha Lecturer 2016: Lecturer recruitment for non-government aided colleges, Chemistry
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DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO
Subject Code No. : 24 sr.No.,-0{If
TEST BOOKLET
LECTURERS IN NON.GOVERNMENT
AIDED COLLEGES
CHEMISTRY
TimeAllowed:2Hours Maximum Marks: 100
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co - 4t15 (Turn over)
%stt
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1 Example of intensive property of a mol-2,b = 0.0266 dm-3 mol-l and
system is: Vm = 0.119 dm3 mol-1 willbe :
(Ai Energy (A) 386.6 atm
(B) Volume (B) 176.76 atm
(C) Mass (C) 672.1 atm
(D) Viscosity (D) 100 atm
2. Example of extensive property of a
5 Zero point entropy of CO crystal at
system is:
0Kwillbe:
(A) Pressure (A) 4.12 JK-l mol-1
(B) Density (B) 5.76 JK-1 mol-1
(C) Mass
(C) 3.152JK-1 mol-1
(D) Viscosity
(D) 7.56 JK-1 mol-l
3. Value of w(J mol-1;forthe conversion
6. Azincrod is placed in 0.1M solution
of 1 mole of water at 1 00oC to steam
of zinc sulphate at 25oC. Assuming
at 1 atm pressure (Heat of
that the salt is dissociated to the
vapourization of water at 100oC is
extent of 95% at this dilution,
40670 J mol-1; is :
the potential of the electrode
(A) 310
at this temperature will be (given
(B) 31
Eo
,n *,zn= - 0.76V) :
(c) 31oo
(A) 0.72v
(D) 0.31
(B) -0.87 v
4 Assuming hydrogen(g) as a van der
(c) -0.7e v
Waals gas, its fugacity at 100oC and
300 atm with a = 0.244 dm6atm
(D) -0.e7 v
co - 4l1s (2) Contd.
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7 Limitation of quin hyd rone electrode (B) NaCl
is that: (C) NarCO.
(A) lt cannot be used in acidic (D) CuSOo
medium
10. Activity of 2.5 mol of a substance
(B) It cannot be used for solutions
changes from 0.05 to 0.35.What
of pH less than 7
would be the change in free energy
(C) lt cannot be used for solutions
al27oC ?
of pH more than 8
(A) 128321.8 J
(D) lt cannot be used for solutions
of pH 7.0
(B) 1318.36 J
(c) 1213.360 J
I lf water vapour is assumed to be a
perfect gas, molar enthalpy change
(D) 12133.6 J
for vaporization of 1 mol of water at 11. The transfer coefficient of a certain
1 bar and 100oC is 1 kJ mol-l. The electrode in contact with M3+ and
internalenergy (kJ mol-1)when 1 mol M4* in aqueous solvents at 25oC is
of water is vaporized at 1 bar and 0.39. The current density is found to
100oC will be :
be 55.0 mA cm-2 when the
(A) 36.e overvoltage is 125 mV. What is the
(B) - 36.e overvoltage required for a current
(c) 37.e density of 75.0 mA cm-2 ?
(D) 3e.7 (A) 118 mV
o Which of the salts will give highest pH (B) 138 mV
in water ? (C) 218 mV
(A) KCr (D) 238 mV
co - 4t15 (3) (Turn over)
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12. Whatwill bethe effectof temperature 14. T,,rof a reaction is doubled as the
on rates of exothermic and initial concentration of the reactant
endothermic reaction ? is doubled. What is the order of the
(A) ln case of endothermic reaction ?
reaction, the rate will increase (A) 1
and that in case of exothermic (B) 2
reactions, the rate will (C) Zero
decrease
(D) 3
(B) ln case of endothermic
15. Which energy level of the triply
reaction, the rate will decrease
ionized berylium (Be3+) has the
and that in case of exothermic
same orbital radius as that of the
reactions, the rate will increase
ground state of hydrogen atom ?
(C) ln both the cases, the rate will
(A) Ground state
be unaffected by temperature
(D) The rate of the reactions will (B) First
increase in both the case (C) Two
(D) None of these
13. The reaction :A + B <-+ C is order
two in forward direction and is order 16. A ball of 19, confined to a one
1 in backward direction. Whatwillbe dimensional box of length 0.1 m
overall order or the reaction ? moves with a velocity of 0.0'l ms-1.
(A) 1
Calculate the quantum number n :
(B) 2 (A) 3 x 1027
(c) 1.75 .i. (B) 2
(D) lnsufficient data to determine (C) 8 x 1021
the order (D) 5
co - 4115 (4) Contd.
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17 . Assuming that the ionic character in 20. The reaction : SOrCl, + SO, * Clz
HBr bond is 11o/o, what will be the is a first order gas reaction with
fraction of the contribution of ionic kt= 2.2 x '10-5 s - 1 at 573K. What
characterto the valence bond wave
% of thionly chloride is decomposed
function ?
on heating at 573K for g0 min ?
(A) o 25
(A) 17.2
(B) 0.43
(B) 10.5
(c) 075
(D) 0 35 (c) 15.7
(D) 11.2
18. Find AH if 2000 mol of super cooled
liquid water at -15.00oC freezes 21. The nature of n-bond in perchlorate
irreversibly at a constant pressure (ClO4l ion is:
of 1.000 atm and a temperature (A) o(0,,) - cl(p,,)
of -15.00oC. Assuming that C,
* of (B) o(p,,)- Ct(pr,)
liquid water is constant and equalto
75.48jK-l mol-l and that Cr,, (c) o(pn)- cl(on)
of ice is constant and equal to (D) o(0,,)- cl(o,,)
37.15jK-1 mol-1 :
22. Which of the following is the correct
(A) - 1s.27 kJ
order of the stability ?
(B) - 10.87 kJ
(A) CN < NO+ < NO-
(c) - 15.87 kJ
(D) - 12.87 kJ (B) NO- < CN < NO+
19. 'lt is not possible to determine rate
(c) No* < cN < No-
determining step if relative rates of (D) CN < NO- < NO+
various steps of a complex chemical
23. Which among the following is soft
reaction are not known.' The
base ?
statement is :
cH3coo-, No;, co3-, H+, cN-, SCN-
(A) Correct
(B) Partially correct (A) H*, CN-, SCN-
(C) Wrong (B) CH3COO-,NO;,COrr-
(D) Required more information to (c) Noa, co23-' H+
derive conclusion (D) CH3COO-, NO;,SCN-
co - 4t15 (5) ( Turn over )
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24. Which among the following is soft
acid, according to Pearson's concept
increasing acid strength
of hard and soft acids ?
Ag*, r'*, No*, Ro*, Hg**, Hgi*
(B) NH, . PH, . AsH, < SbH, :
increasing basic strength
(A) Ag*, RO*, Hg**, Hgi*
(B) Ag*, l7*, No*, Ro* (C) B<C<O < N:increasingfirst
ionization enthalpy
(c) No*, Ro*, Hg**, Hg;*
(D) CO, . SiO2 < SnO, < PbO, :
(D) Ag*, l7*, No+, Ro+, Hg**,
increasing oxidising power
Hsi*
28. ln which of the following arrange-
25. Which of the following represent set
ments the order is NOT according to
of hard acid and soft base
the property indicated against it ? '
respectively ?
(A) Mg**,or'- (A) Al3* .Mgr* < Na+ < F
-
increasing ionic size
(B) Mg**, sR-
(c) BF3' F (B) B<C< N <O< P-increasing
first ion isation enthalpy
(D) BF3' H2O
(C) I< Br< F < CI
26. Which of the following statement is -increasing
electron gain enthalpy (with
true ?
negative sign)
(A) Hard acids are non-polarizable.
(D) Li < Na < K< Rb-increasing
(B) Pyridine, SO3, H2O are Lewis
metallic radius
base.
(C) According to HSAB PrinciPle, 29. Which one of the following
HA prefer SB for binding. substances has the highest proton
(D) Ag* is hard acid. affinity ?
27. ln which of the following (A) Hro
arrangements, the sequence is not (B) HrS
strictly according to the property (c) NH.
written against it ?
(D) PH.
t
co 2 4115 (6 ) Contd.
Text of page 7
30. The correct sequence which shows (C) Acetic acid has a levelling
decreasing order of the ionic radii of effect on strength on HF HCl,
the elements is :
HBr, Hl
(A) Ala* , M9r* .' N?+ , F-, Oz-
(D) Water is differentiating solvent
(B) Nr* , Mgr*, Ala* , Oz_, F _
for HF and HCI
(C) Nr* , P_ > Mgz*, Oz_, Alr*
(D) oz-, F- > Na* > [/lgz* 'Alr* 34. MnCrrOo is likely to have a normal
spinel structure because :
31. Consider the ions Eu(lll), Gd(lll),
Sm(lll) and Lu(lll). The observed and (A) Mn2* will have a LFSE in the
calculated magnetic moment values octahedral site whereas the
are closest for the pair : cr3* will not
(A) Gd(lll), Lu(lll) (B) Mn is +2 oxidation state and
(B) Eu(lll), Lu(lll) both the Cr are in + 3 oxidation
(C) Sm(lll), Gd(lll) state
(D) Sm(lll), Eu(lll)
(C) Mn is +3 oxidation state and
32. ldentify the order representing 1 Cr is in +2 and the other is
increasing n-acidity of the ligands
in + 3 state
CrFo, NEt3, CO and CrHo:
(D) Cr3* will have a LFSE in the
(A) CO < CrFo.Cr{oq NlEt3
octahedral site wheareas the
(B) CzF q. CrHoa f.lEt3 < CO
Mn2* ion willnot
(C) Cr{oa NE! < CO . CzF o
(D) NEt3 < CrF o. CzF o < CO 35. [CoL6]3* is red in colour whereas
33. Which of the following statement is lcot-i13* is green. L and L'
false ? respectively corresponds to :
(A) Liquid ammonia has levelling (A) NHu and HrO
effect on strength of HF and (B) NH.and 1,1O-phenanthroline
HCI
(C) HrO and 1,1O-phenanthroline
(B) Water has levelling effect on
strength on HF and HCI
(D) HrO and NH,
co -4t15 (7 ) (Turn over)
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41. What is the major product obtained
from the following reaction ? (B) C H3 cH,
t"
"... D
D
H
D2
catalyst
H low pressure DD
(c) CHs-C-
ll
"ll C-CHs
DD
H
D
(A) D D D
H I I
(D) cDs - C - c-cD3
I I
D D D
H
(B) H
43. The following stereoisomers are
related as :
H
D
(c) H
cH.
Hj l- o,
OH
D H H-ll- o,
(D)
D OH
Ho--1
l
Lr
42. What is the major product expected
CH 1
H H Ho--l !,
cH20H
from the following reaction ?
Drone mole
cH.-c= c- cH3 (A) Enantiomers
Low pressure
poisoned catalyst
(B) Diastereomers
CH 3 (c) Epimers
\" /D
(A) (D) ldentical compounds
"-. CH,
D
co - 4t15 (e) ( Turn over)
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44. What is the major product of the
following reaction ?
(c)
o
ll NaBHo
cH3-c -cH2-cH3
cH3oH
(A) S-2-butanol
(B) R-2-butanol (D)
(C) a racemic mixture of 2-butanol
(D) The hemiketal of 2-butanone
46. Which of the following compounds
and methanol....2-hydroxy-2- would react most readily by the S*2
methoxybutane mechanism ?
45. What is the major product obtained
(A) Br
from the following reaction ?
H
heat
H
\c
(B)
---+
dilute H Br
solution
(c)
Br
(A)
(D) None of these comPounds will
react by a S,u2 mechanism
There are severe steric problems for
(B) the S*2 mechanism for each of
these componds.
(10) Contd
co - 4115
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47. Which of the following nuclei will (B) cH, - - Br
?'
have a magnetic moment ? cHs
(A) lo (c) CH.-CHr-C=N
(D) CH"- CH -C=N
(B) ,30 "l
cHa
(c) , t. 49. What is the multiplicity expected in
32 the hydrogen NMR spectrum for the
(D) S
16
hydrogen atoms marked by a "star"
Nuclei that have an odd atomic in the following compound ?
number, odd atomic mass or both o
will have magnetic moments.
ll*
cHr- c - cH2-cH,
48. Which of the following compounds (A) Singlet
best fits the PMR spectrum shown (B) Triplet
below ? The table shows the (C) Quartet
chemical shift for groups attached to
(D) Heptet
a bromine atom or a cyano group
50. Which of the following alkyl groups
measured to the centre of the
would show the multiplet pattern
multiplet:
depicted in the diagram ?
rrrlr
121110 I 8 7 6 5 4 3 2 1 0 ppm
Group cHg CHz CH
CN 1,98 ppm 2.45ppm 2.9ppm cHe
Br 2.7 ppm 3.4 ppm 4.25 ppm I
(A) cH3 - cH CH 2 X
(A) CH, - CH, - Br
co - 4t15 ( 11 ) ( Turn over )
Text of page 15
61. 31P NMR for PF, molecule (tp = l) (B) 2260to2240
gives: (C) 2950 to 2650
(A) 3 peaks (D) 3590 to 4420
(B) 4 peaks
65. ln spectros"opy cm-1 is also known
(C) 6 peaks
AS
(D) 9 peaks
(A) Lumen
62. Oxygen has nuclear spin of 5/2. The (B) Candela
NMR of oxygen gives :
(C) Kayser
(A) 2lines
(D) Lux
(B) 3lines
(C) 4lines 66. ln the infrared spectrum of lCl, ion,
(D) 6lines the number of experimentally
observed normal modes of vibrations
63. The NMR spectrum of acetyl acetone
was taken at 43oC. The band is:
observed at 6 5.52 is due to olefinic (A) 2
hydrogen of enol form and band (B) 3
observed at 6 3.66 is attributed to (c) 4
keto methylene group. lf the areas
(D) 6
underthe two curves are in the ratio
of 37 : 19.5, what will be the 67. An lR spectrum of a hydrocarbon
percentage of enol form in acetyl containing 10 percent hydrogen
acetone ? gave two bands (i) 3295 cm-1 and
(A) 20.eYo (ii) 625 cm-1 along with a weak
(B) 100% absorption band nea r 2130 cm-1.
(c) 7e1% What is the probable structure of the
(D) 82.2o/o compound ?
64. The stretching vibration frequencies (A) CH, - CH = CH,
of C = N (alkyl cyanide) is in region (B) CHr-C=CH
of (in cm-1) : (c) c6H5cH2oH
(A) 1400 to 1250 (D) CH, - CH, - CHO
co - 4t15 ( 15 ) (Turn over)
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68. The deeperthe glass, the darkerthe 72 The expected apparent mass of the
blend, the smallerthe amount of light metastable ion produced when m/z
at the end, which law explains the 77 decomposes by loss of CH =CH
above phrase ? to m/z 51 willbe :
(A) Nernst law (A) 43.4
(B) Lambert's law (B) 33 8
(C) ilkovic law (c) 66.8
(D) Beer's law (D) 51 0
69. Aniline absorbs at 280 n, (urr* 8600), 73 The compound whose mass
however in acidic solution the main spectrum shows m/e values at 156
absorption band is seen at: (M*, base peak), 127 and29 is:
(A) 280 nm (A) CrHuBr
(B) 260 nm
(B) CH3r
(C) 225 nm
(c) cHrBr
(D) 203 nm
(D) C2Hsr
70. According to the Woodward rules for
74 State which of the following statement
the UV spectra of 1, 3-butadienes,
each alkyl substituent causes the is nottrue :
I-^.-
max
to shift by : (A) Alcohols generally fail to give a
(A) + 10 mlt visible molecular ion peak
(B) +5mp (B) The loss of an alkene fragment
(C) -5mp by a cyclic rearrangement of a
(D) - '10 mpt carbonyl compound with y-
hyd rogens is known as
71. The largest peak of a mass spectra tVclafferty rearrangement
is always the :
(C) The molecular ion peak is
(A) Molecular ion (parent Peak) generally the peak of highest
(B) First-fragmented ion peak mass number, except for the
(C) Base peak isotope peak
(D) Mclafferty rearranged ion (D) Fragment ion peak is never a
peak base peak or parent peak
co - 4115 (16) Contd.
Text of page 17
75. ln gas chromatography, if two solutes 77. The following statement describes
with short retention time co-elute which type of GC detector:
(i.e. are not resolved), what is the
The elute is burned in mixture of
simplest way to attempt to resolve the
hydrogen and air and compounds
peaks ?
that contain carbon and hydrogen
(A) Use a longer column
produce CH radicals that react with
(B) Use a higher column
O atoms to produce electrons. The
temperature
(C) Use a lower column electrons flowto the cathode and the
temperature current measured is proportional the
(D) Use a more polar solvent amountof analyte:
76. An analyst loaded a mixture of two (A) rcD
compounds, X and Y onto C18 (B) FID
column.After20 min run, only 1 peak
(c) MS
appeared in chromatogram. What
(D) ECD
are possible c€luses of this outcome ?
(A) One of the compounds, X orY, 78. The percentages of a constituentA
is markedly non-polar and has in a compoundAB were found to be
not been eluted yet 48.32,48.36, 48.23, 48.11 and 48.38
(B) Both compounds, X and Y percent. What is the mean deviation
happen to elute at the same
init?
time
(A) 0.0e
(C) One among them, X orY does
not absorb atthe wavelength ),
(B) 1.e
used for detection (c) 0.e
(D) Allof the above (D) e
co - 4t15 (17 ) (Turn over)
Text of page 18
79. ln nephelometry the scattered light is 83. Minimum concentration (ppm) of DO
normally measured at an angle of : required for higher life forms to
(A) 45oC survive is :
(B) gooc (A) 1.0
(c) 135oC (B) 2.0
(D) 'tBooc
(c) 3o
80. Absorbed wavelengths in atomic (D) 4.0
absorption spectrum appear as :
84. Dichromate titration is used for
(A) Dark background
determination of :
(B) Dark lines
(A) Do
(C) Light background
(B) BoD
(D) Light lines
(c) coD
81. Minamata disease associated with
(D) rss
the following metal :
(A) 7r 85. Pesticides can be determined by:
(B) Cu (A) AAS
(C) As (B) Chromatography
(D) Hg (C) UV is spectrophotometer
(D) rss
82. Winkler's method is used for
determination of which water quality 86. Which of the following affects the
parameter: adsorption of a gas on solid ?
(A) DO (A) TC(CriticalTemperature)
(B) BoD . (B) Temperature of gas
(c) coD (C) Pressure of gas
(D) rss (D) Allof them
co - 4115 (18) Contd.
Text of page 19
87 . At the Critical Micelle Concentration 90. Adsorption of gases on solid surface
is generally exothermic beacuse :
(CMC)the surfactant molecules :
(A) Enthalpy is positive
(A) Decompose
(B) Entropy decrease
(B) Dissociate
(C) Entropy increase
(C) Associate
(D) Free energy increase
(D) Become complete soluble
91. The lowering of the surface tension
88. Which gas will be adsorbed on a of a solvent by the surface film can
solid to greater extent ? be expressed in terms of surface
(A) A gas having non-polar film pressure which is :
molecules (A) The negative of the surface
tension
(B) A gas having highest critical
temperature (B) The negative of the change in
surface tension
(C) A gas having lowest critical
(C) The negative of the change
temperature
surface area of solvent
(D) A gas having highest critical
(D) None of these
pressure
92, Which of the following refer to the
89. The density of liquid methane is
oxidation state of lron and number of
0.466"103 kg/m3. The approximate
oxygen molecule carrier capacity of
cross-section area of a methane haemoglobin and myoglobin
molecules is: molecules:
(A) 17.8 * 10-20 m2 (A) Fe*3,4,1
(B) 14.8* 10-20 m2 (B) Fe*2,2, 1
(C) 16.7 * 1O-2s m2 (C) Fe*2,4, 1
(D) 10.2" 10-20 m2 (D) Fe*3, 1, 4
co - 4t15 (1e) (Turn over)
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93. Which is the function of Carbonic solution of NarSrOr. The intensity of
Anhydrase ? the lightsourcewas 9.15 x104Js-1.
Assuming complete absorption of
Conversion of CO, into HCO,
energy, quantum yield of the reaction
(B) Conversion of HCOJ into CO,
willbe:
(C) Deprotonation of water by
lowering the pKa of water
(A) 22.225
(D) Allof the above (B) 13.225
(c) 31.225
94. How much ATP molecules are
(D) 21.225
required in each N, molecule fixation
by molybdenum nitragenase ? 97 Chemical actinometer and
(A) 14 thermopile are used to:
(B) 12 (A) Determine temperature of the
photochemical reaction
(c) 16
(D) 18 (B) Determine the number of
photons absorbed
95. ln which step photolysis of water
(C) Determine the number of
occurs during photosynthesis ?
decomposed light absorbing
(A) Before photo system I
molecules
(B) During photo system ll
(D) Determine the number of
(C) After photo system ll undecomposed molecules
(D) During photo system lt
98 The light of the firefly is an example
96. ln photochemical decomposition of of:
ethylene iodide:
(A) Chemiluminiscence
C2H4l2+ lr-+ CrHo+ l,
(B) Phosphorescence
By radiation of 424 nm, the iodine
(C) Fluorescence
formed after 20 min required
(D) Photosensitization
41.14 cm3 of 0.0025 mol dm-3
' co - 4115 (20) Contd.
Text of page 21
99. At 460 nm, blue filter transmits 100. Calculate the life time of an excited
72.7o/o of the light and a yellow filter state if the natural width of the
transmits 40.7% of the light. lf the two spectral line arising from the
filters are combined, whatwill be the transition between this state and the
% transmittance ? ground state is 0.053 ,
"r-l
(A) 26.e (A) 25 ps
(B) 2e.6 (B) 50 ps
(c) 6e.2 (C) 75 ps
(D) 56.7 (D) 100 ps
IITIIIIIIIIIIII
co - 4t15 (21) (Turn over)
Text of page 22
SPACE FOR ROUGH WORK co - 4115 (22) Contd.
Text of page 23
SPACE FOR ROUGH WORK co - 4/15 (2,090) (23 ) Chemistry
Text of page 24
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aOfficial key not published for this paper.
Page 1 of 24
Source: State Selection Board. Question paper published by State Selection Board.