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 'Finger Print Searcher -Police Department(CAT.NO:139/2020)' And exam conducted in the year 2021. And Question paper code was '103/2021'. 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.
103/21
41. Which of the following molecules have larger bond angle ?
A) NF3 B) PF, ©) മട D) SbF,
42. Among the following iso-electronic ions which have larger ionic radius ?
A) N&- ہم رم C) ح D) Nat
43. Among the following compounds :
(i) 6٢و - COOH
(1 (CH3)>CH - COOH
(iii) ((113)3 - COOH
(iv) H- COOH
The acidity order is
A) (i) > (ii) > (iv) > (iii) 8) (iv) > (i) > (ii) > (iii)
C) (iv) > (ii) > (i) > (iii) D) (ii) > (i) > (iii) > (iv)
44. Match the following :
A B
(i) Lyman series (i) Far Infra-red
(ii) Paschen series (1) Infra-red
(iii) Balmer series (iii) Near Infra-red
(iv) Pfund (iv) Ultra-violet
(v) Visible
A) (i) - 0), (ii) - (ili), (iii) - (iv), (iv) - (ii)
8) ( ~ (iii), (ii) ~ 0), (iii) - (iv), ൧-0)
©) (i) - (iv), (ii) - (ii), (ili) - (७, (iv) - 0)
D) (i) - (५), (ii) - (iv), (iil) - (iv), (iv) - (ii)
45. How many ൨ and / particles are lost when 92(1238 is converted 1೦78226)
A) 3a-particles and 28-particles ட) 2a-particles and 3f-particles
C) 1a-particle and 38-particles D) 4a-particles and 38-particles