Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Chemist - Kerala State Co-operative Marketing Federation Ltd ' And exam conducted in the year 2022. And Question paper code was '043/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
40. Zeigler-Natta catalyst is used in making :
(A) Low density polyethylene (B) High density polyethylene
(C) Polystyrene (D) PMMA
41. What will be the fraction of molecules having energy equal to or greater than activation
energy, Ea?
(A) K رم A
(© Ac Part (D) پسھے
42. What is the geometry of pentacarbony] iron (0)?
(A) Square planar ൯) Tetrahedral
(0) Trigonal bipyramidal 0) Octahedral
43. Which of the following will give effective reduction of 3-hexyne to trans-3-hexene?
(^) Hb/Lindlar’s catalyst ൯ Na/liq. NHs
(0) Fe/NaCl (D) DIBAL
44. An organic compound (MF; CsHio0) exhibited the following 'H NMR special data:
62.5 (8H, ஓ, 3.8 (814, s), 6.8 (211, १, J 8 Hz), 7.2 (2H, d, J 8 Hz) ppm. What will be the
compound among the choices?
(A) 4-methylbenzyl alcohol ൯) 4-methyl anisole
(0) 4-ethylphenol ൯൩) 2-ethylphenol
45. Which Biomolecules simply refers as “Staff of life” in the given macromolecules?
(A) Vitamins (B) Carbohydrate
(C) Lipids (D) Protein
46. Who discovered the mass spectrometer?
(A) Walter Kaufmann (B) Ernest O. Lawrence
(C) Francis Aston ) J.J.Thomson
47. Which of the following is a product formed in Claisen condensation?
(A) #-ester (B) £-ketone
(@ £-keto ester (D) Y-diketone
48. Which of the following will form alkyl bromide on reaction with Br, 7
(^) Alcohols ൯) Alkenes
(೮) Silver salt of fatty acids ൯൩) Allof these
043/2022 8 A