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Shivaji University , Kolhapur
Seat Paper Code(ENT202012)
No.
M.Sc Entrance Exam , MAY-2020
58713-CHEMISTRY
Day And Date : Friday 20/11/2020 Total Marks : 100
Time : 10:30 To 12:00
Marks
1 1
2 Melphalan is an example of ……………………………drug. 1
A) Antiinflammatory
B) Antituberculosis
C) Analgesics
D) Anticancer
3 At the congruent melting point of the compound, system is …………… variant. 1
A) uni
B) bi
C) tri
D) in
4 ----------- of nitrogen (N) is present in Urea 1
A) 80
B) 70
C) 46
D) 0.3
5 As ………MO’s are available for electronic transition, charge transfer spectra is 1
possible.
A) Bonding
B) Non-bonding
C) Anti-bonding
D) Sigma bonding
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6 Rate of flow value (Rf) is the ratio of ……. 1
A) Distance travelled by solvent front by solute
B) Distance travelled by solute to that by solvent front
C) Distance travelled by mobile phase by solute
D) Distance travelled by stationary phase to that by mobile phase
7 Coordination position isomers are related to ……... complexes. 1
A) Bridged
B) Cationic
C) Anionic
D) Neutral
8 According to Werner complexes with CN of central metal atom or ion = 6, 1
geometry is always……
A) Octahedral
B) Trigonal bipyramidal
C) Prismatic
D) Planar hexagonal
9 MOT discussed on the basis of principle………. 1
A) Pauli’s exclusion principle
B) Aufbau principle
C) Periodicity in properties of elements
D) LCAO approximation
10 During the formation of an octahedral complexes when (n-1)d orbital’s are involved 1
in bonding, resultant complex will be ……. ..orbital complex.
A) Outer
B) Inner
C) Neither inner nor outer
D) Upper
11 Which one of the following element is involved in blood clotting? 1
A) Na
B) Mg
C) Ca
D) Platinum
12 Which one of the following is not used as a detector in flame emission 1
photometer?
A) Photovoltaic cell
B) Photronic cell
C) Photo-emissive tube
D) Chromatogram
13 1
14 The degeneracy of rotational energy levels is ---------. 1
A) J+1
B) 2(J+1)
C) 2J+1
D) J+2
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15 1
16 1
17 The temperature at which two liquids are partially miscible becomes completely 1
miscible in all proportions is known as ………………………………temperature.
A) consolute
B) boiling
C) critical
D) none of thees
18 In construction of gas electrode, an inert metal is 1
used………………………………….
A) as reference electrode
B) as indicator electrode
C) to make electrical contact
D) none of these
19 When glass electrode is dipped in solution a difference of ……………..exists at the 1
interface between glass and solution containing H+ ions.
A) potential
B) conductance
C) temperature
D) none of these
20 1
21 1
22 1
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23 1
24 A Michael reaction is an example of a conjugate addition. What is a conjugate 1
addition?
A) A conjugate addition is a synchronous addition of an electrophile and
nucleophile to a double bond
B) A conjugate addition is a nucleophilic addition to a triple bond followed by
protonation
C) A conjugate addition converts an α,β-unsaturated ketone into a substituted
saturated ketone
D) A conjugate addition is a nucleophilic addition to an aromatic ring followed by
the expulsion of a leaving group
25 1
26 Deduce the structure of the compound from the following spectral data. 1
27 The intensity of beam recorded in mass spectra depends upon the relative 1
abundance of _______species
A) Free radical
B) Molecular
C) Cationic
D) Neutral
28 Deuterated solvent in an NMR sample is used to -----------. 1
A) stabilize the magnetic field
B) set the chemical shift reference
C) cobtain good field homogeneity across the sample
D) both (a) and (c)
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29 1
30 ………….is an antibiotic 1
A) Ibuprofen
B) Quinine
C) Penicillin-G
D) Isoniazid
31 2,3-dibromobutane is produced by ……………………. 1
A) The addition of the bromine to 2-butene
B) The addition of the bromine to 1-butene
C) The addition of the bromine to 1,3-dibutadine
D) The addition of the bromine to cyclobutene
32 The functional groups present in sucrose monosterate are----- 1
A) Ether, alcohol and ester
B) Ester and alcohol
C) Alcohol and amide
D) Alcohol and ester
33 Which of the following is subtype of stereoisomer?` 1
A) Optical
B) Ionization
C) Hydrate
D) Linkage
34 Silicon is doped with trivalent impurity; then the resultant substance is………… 1
A) Superconductor
B) p-type semiconductor
C) n-type semiconductor
D) insulator
35 The driving force in Wittig reaction is--- 1
A) Formation of phosphorous-carbon bond in ylide
B) Formation of Betaine
C) Formation of phosphorous-oxygen bond in triphenylphosphine oxide
D) Both a and b
36 1
37 Superconductivity was discovered by……… 1
A) R.S. Drago
B) L. Pauling
C) H.K. Onnes
D) N. Bohr
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38 1
39 The colour change property of an acid base indicator depends on …….. 1
A) pH of the solution
B) structural rearrangement
C) ionization of indicator
D) all of the above
40 pH range of methyl red indicator is ………….. 1
A) 3.1 to 4.2
B) 4.2 to 6.3
C) 6.3 to 7.1
D) 5.2 to 6.3
41 The rotational constant of NO molecule is 1.956 cm-1. The frequency of transition 1
from J = 2 to J = 3 is ------ cm-1. a)3.912 b) 7.824 c) 11.736 d) 15.648
A) 3.912
B) 7.824
C) 11.736
D) 15.648
42 The rotational constant of HCl molecule is 10.35 cm-1. The frequency of transition 1
from J = 1 to J = 2 is ------ cm-1.
A) 20.7
B) 31.05
C) 41.4
D) 51.75
43 The potential of standard Hydrogen electrode is arbitrarily taken as .......... V. 1
A) 1.1
B) 1.018
C) 0.6991
D) 0.0
44 The upper CST of Phenol-Water System is............................ oc 1
A) 36.1
B) 63.9
C) 66.5
D) 105.2
45 1
46 Which factor decides the major product in Favoriskii rearrangement? 1
A) Strain in cyclopropanone ring
B) Nature of base used
C) Stability of carbanion
D) Temperature of reaction
47 1
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48 The value of potential of saturated calomel electrode at 298 K is ……………V. 1
A) 0.0591
B) 0.4540
C) 0.2458
D) 0.6998
49 1
50 1
51 Which of the following is a constitutive property? 1
A) Mass
B) Optical activity
C) Molar heat capacity
D) Dipole moment
52 In simple reactions the rate of reaction ------------- as the concentration of reactants 1
increases.
A) Increase
B) Decrease
C) Remains Constant
D) Reaches maximum
53 1
54 Nicotine on oxidation with chromic acid gives…. 1
A) Nicotinic acid
B) Benzoic acid
C) Pyridine-3-carboxylic acid
D) Both a and c
55 Alkoxy group in alkaloids detected and estimated by …………method 1
A) Acylation
B) Reduction
C) Ziesel
D) dehydrogenation
56 The compound propadiene is an example of ________________diene. 1
A) conjugated
B) isolated
C) cumulated
D) cyclo
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57 Mass spectrometer separates ions on the basis of which of the following? 1
A) Mass
B) Charge
C) Molecular weight
D) Mass to charge ratio
58 The Kjeldahl’s method is used to estimate amount of ________ 1
A) phosphorus
B) potassium
C) nitrogen
D) iron
59 In Kjeldhal's method nitrogen is liberated in the reduced form of ............... 1
A) NO2
B) HNO3
C) (NH4)2SO4
D) HNO2
60 1
61 1
62 The ratio of energy per Einstein and that of photon is……………………number. 1
A) Equivalent
B) Einstein
C) Lamberts
D) Avogadro’s
63 Which of the following is not an application of flame photometers? 1
A) Analysis of biological fluids
B) Determination of Na, K in soil
C) Determination of metals such as Mn, Ca
D) Analysis of complex mixtures
64 1
65 1
66 Photosynthesis is an example of ………………. 1
A) Fluorescence
B) Phosphorescence
C) Chemiluminescence
D) Photosensitization
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67 Coating of Zn, Al and Cd on steel are _________ , because their electrode 1
potentials are lower.
A) cathodic
B) anodic
C) not affecting
D) none of the above
68 The electromagnetic radiation having longest wavelength are a) 1
A) Light
B) Infra red
C) Radio waves
D) Gamma rays
69 Which of the following metal is more corrosive? 1
A) platinum
B) gold
C) silver
D) zinc
70 1
71 1
72 For thermodynamically reversible process, the entropy change is ……………JK-1. 1
A) 10
B) 0
C) 20
D) 30
73 1
74 If the plane of crystal cuts the two coordinate axes and is parallel to third axis, then 1
this plane is known as ---------.
A) cubic
B) cubic diagonal
C) simple
D) diagonal
75 The ratio of fugacity of substance in a given state to that in its standard state is 1
known as ……………….of a substance.
A) activity
B) molarity
C) concentration
D) chemical potential
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76 1
77 1
78 1
79 What is the degree of unsaturation for the compound possessing MF C6H6O 1
A) 4
B) 2
C) 1
D) 3
80 1
81 1
82 1
83 1
84 1
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85 In potentiometric analysis Calomel electrode is used as ------------- electrode. 1
A) Indicator
B) Reference
C) Supporting
D) Inert
86 In a face centered cubic lattice, a unit cell is shared by equally by how many unit 1
cells?
A) 8
B) 4
C) 2
D) 6
87 Average life of a certain radioactive element is 1440 years. Then the half life 1
period of same element is ..............years.
A) 10
B) 100
C) 1000
D) 144
88 1
89 1
A) zero
B) first
C) third
D) second
90 1
91 What is the relation between restoring force, f to the displacement q in Hooke’s 1
law?
A) f = -kq
B) f = kq
C) f = kq2
D) f = -kq2
92 Which of following is used for 1,2-cis-hydroxylation of alkenes? 1
A) Manganese dioxide
B) Potassium permanganate
C) Osmium tetraoxide
D) Both b & c
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93 The liquor left after crystallization of sugar is called as-- 1
A) Spent wash
B) Bagasse
C) Black strap
D) Both a & b
94 The three component solvent system is preferred for TLC and paper 1
chromatography because it helps to .....
A) accelerate the driving force
B) increase the polarity of solvent
C) decrease the polarity of solvent
D) retain more water in organic solvent
95 Uranium-238 is……………….. 1
A) fissile nuclear fuel
B) transuranic element
C) non-radioactive element
D) fertile nuclear fuel
96 The quinhydrone electrode is reversible with respect to --------- ion 1
A) Hydrogen
B) Cholride
C) Ferrous
D) Ferric
97 1
98 Which of the following liquids forms completely soluble mixture? 1
A) phenol and water
B) benzene and water
C) ethanol and water
D) all of the above
99 In Phase rule F = C – P + 2, the number 2 indicate --------- and ----------. 1
A) volume and pressure
B) volume and temperature
C) pressure and temperature
D) concentration and temperature
100 An electrode has the value of potential as 0.771 V. This electrode is connected 1
with another electrode and the potential of the resulting electrochemical cell is also
0.771 V. The another electrode is -----------.
A) Calomel
B) Silver-silver chloride
C) Standard hydrogen
D) Zinc-Zinc ion