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.
043/2022
Maximum : 100 marks
Time : 1 hour and 30 minutes
1. Which among the following formation is not an example of Covalent bond?
(A) LiF (B) NH,
(C) CE, (D) HF
2. The wave length of a spectral line for an electronic transition is inversely related to :
(A) Number of electrons undergoing transition
(B) The nuclear charge of the atoms
(C) The difference in the energy levels involved in the transition
(0) The velocity of an electron undergoing transition
8. Which of the following quantum number has not been derived from Schrodinger wave equations?
(^) Principal quantum number (B) Subsidiary quantum number
(C) Magnetic quantum number ൯൩) Spin quantum number
4. Increasing order of electronegativity is :
(A) Bi
(C) C>F>N>0 ൩൬) F>O>N>C
5. Examples of super octet molecule is :
(A) PCls (B) 88,
(0) IF, ന) Allof these
6. When P,O,, is dissolved in water, the acid formed finally is :
(A) H,PO, (B) பறட,
(0 120, 0) 120,
7. 20611 reacts with PF; to give :
(A) டி ൯ [XeF]* [ए]
(0 ೫೫, ൬ [0೫,]' [XeF,}
8. The Vander Waals equation (P ಎ ೩/17) (V-b) = RT, where P is pressure, V is the specific
volume, T is the temperature and R is the gas constant. The SI unit of ‘a’ is:
(A) J/Kg.K (B) m/Kg
(0) ೫28/1053 0) Pa/Kg
[.7.0.]