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 'Archaeological Chemist - Archaeology ' And exam conducted in the year 2022. And Question paper code was '044/2022'. 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.
38. Which of the following is the application of ion exchange chromatography?
(A) The softening of hard water (B) The demineralisation of water
(C) Both (A) and (B) ൯൩) None of the above
39. Which is the correct order of increasing wave number of the stretching vibrations of
(1) C-H (alkane), (2) C-H (alkene), (3) C-H (alkyne), and (4) C-H (Arene)?
^ ()< (4) = (2)< 8) (8) (4) < 8) = (2) <)
© ()<2) = (8)< (4) (0) (8) < (4) &) < ()
40. Which among the following shows carbonyl stretching frequency at 1715 cm™!?
0
0
(A) رم
0
(C) ൯൩) Allthe above
41. Nuclei having both atomic number and mass number even have spin.
(A) Integral spin (B) Half integral spin
(C) Zero spin (D) Positive spin
42. Which of the following has three types of hydrogens in the following compounds?
Cl
ധ Br-CH=CH, (3) A
© CH, -CH, -೦೫ (D) All the above
43. Identify the reaction :
(~ இ 26
+ ८ 0
4 ے ಸ್ರ) 1 ٦ + 2001
R
(^) Gabriel phthalimide synthesis (2) Chan-Lam coupling
(0) Buchwald-Hartwig Reaction ൯) Ullmann reaction
44. Fmocis:
(A) 6-fluorenylmethoxycarbonyl] ൯) 7-fluorenylmethoxycarbonyl
(0 9-fluorenylmethoxycarbony] ൯൩) 7-fluorenylethoxycarbonyl
044/2022 10 A