MDCAT CHEMISTRY MCQS CHAPTER WISE PAST PAPERS
Uhs mdcat chemistry mcqs are collected for the students who are preparing to attempt mdcat examination in this year.
Chemistry MCQs for Entry Test:
Multiple choice questions for entry test(UHS MDCAT Chemistry MCQs). All mcqs are collected from previous papers of mdcat. This is sample paper for mdcat UHS Syllabus.
UHS MDCAT CHEMISTRY MCQS
31. Homolytic
fission is the most common mode of of fission in
(a) Solid
phase (c) liquid phase
(b) Vapour
phase (d) semi liquid phase
32. Heterolytic
fission takes place at
(a) measureable rates
(c) take place at unmeasurable rates
(b) very fast rate
(d) uncontrolled rates
33. Which
one is stable ion
(a) Ethyl
carbonium ion
(c) isopropyl carbonium ion
(b) tertiary butyl
carbonium ion
(d) methyl carbonium ion
34. Which
group does not have positive inductive effect
(a) primary carbonium ion
(c) Ter. Carbonium ion
(b) nitrobenzene
(d) secondary carbocation
35. In
substitution reaction the number of sigma bond
(a) increases
(c) decreases
(b) remain same
(d) become double than original sigma bond
36. Which
type of bond resists the addition reaction
(a) double bond
(c) triple bond
(b) saturated bond
(d) unsaturated bond
37. Which
pair of reaction is reverse of each other
(a) addition/substitution
(c) Elimination/Rearrangement
(b) addition/Elimination
(d) Elimination/Rearrangement
38. In
Elimination reaction
(a) saturated compound become unsaturated
(c) unsaturated become saturated
(b) saturated become remain saturated
(d) species destroys
39. When
bond is polar b/w two atoms which reaction is prefered
(a) fission (c) fusion
(b) rearrangement (d)
free radical
40. Ethanol
and Dimethyl ether are best example of
(a) sterioisomer (c) entantiomers
(b) structural isomer
(d) optical isomers
41. Alkene
show geometrical isomers due to
(a) Asymmetry
(c) Rotation around single bond
(b) Resonance
(d) restricted rotation around double bond
42. Which
of following compound exhibit geometrical isomers
(a) 1-pentene
(c) 2-pentene
(b) 2-methyl-2-pentene(d) 2-pentanol
43. Which
compound can show functional group isomerism
(a) acetic acid
(c) 1-butene
(b) amino acid (d) pentane
44. Which
alkyl free radical is most stable
(a) methyl (c) primary
(b) secondary (d) tertiary
45. Which
one of following is lewis acid
(a) AlCl3
(c) CH3OH
(b) NH3 (d) dimethyl ether
49. The
species ______________ contain number of sigma bond
(a) 6 (c) 12
(b) 16
(d) 10
50. Which
one is not heterocyclic compound
(a) benzene (c) pyridine
(b) pyrol (d) furan
51. Contact
process was firstly developed in country
(a) England (c) Germany
(b) America (d) Japan
52. When
sulphure dioxide change into sulphur trioxide the amount of energy released is
(a) -370 KJ/mol (c) -269.3 KJ/mol
(b) -57.5 KJ/mol
(d) 700 cal
53. Nitrous
acid change to nitric acid by
(a) oxidation (c) reduction
(b) polymerization
(d) condensation
54. Colour
of potassium nitrate pillet is
(a) green (c) pale yellow
(b) white
(d) pink
55. Di
ammonium phosphate contain nitrogen
(a) 48% (c) 46%
(b) 16%
(d) 33%
56. Which
nitrogen fertilizer contain high amount of nitrogen
(a) Urea (c)
Potassium Nitrate
(b) Ammonia (d)
DAP
57. Ammonium
nitrate obtained by treating ammonia with
(a) nitric acid (c) potassium nitrate
(b) urea
(d) DAP
58. Which
compound is used as drying agent in contact process in drying tower
(a) oleum (c) sulphuric acid
(b) Cao (d) NaNO3
59. Nitrogen
found in free state in
(a) protein
(c) Urea
(b) Amino acid
(d) air
60. For
formation of nitric acid Birkland and eyed method consists of how many steps
(a) 2
(c) 3
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