Kerala PSC Previous Years Question Paper & Answer
Page:12
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
68.
69.
70.
71.
72.
73.
74.
The gas used for inflating the tires of airplanes is
A) No and He 8) 112 and He
C) ولا and 112 0) Ar and He
Plaster of Paris is
൧) CaSO,.H,0 8) CaSO,.2H,0
©) லேடி 1120 0) CaSO,.1% 1120
Which of the following compounds has the lowest anion to cation size ratio ?
A) LiF B) NaF
C) கே D) CsF
The fingerprint region in the IR spectrum is
A) 900 - 1400 ണ്! 8) 12500 - 400 ണി
©) 666 - 50 ണി D) 666 ~ 4000 ണി
Which of the following is a chromophore ?
A) NH, 8) NO,
C) Br D) OH
When 7, Of a compound shifts to a longer wavelength, the compound is said to
have undergone
A) Hypsochromic shift B) Hyperchromic shift
C) Bathochromic shift D) None of the above
Which of the following is thermosetting plastic ?
A) Perspex B) Bakelite
©) PVC D) PVA
-12-