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.
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103/21
Packing fraction is related to
A) Nuclear spin B) Mass defect
C) Radioactivity D) Atomic number
Which of the following is the correct order of bond dipole moment ?
A) C-Cl > C-Br > 61 8) 0-2 0-81 > 0-0
0) ०-0 < ७-1 < 0-8 0) C-Br< 6-1 > 0-0
Among the following molecule which has the longest C-H bond length ?
A) Ethene B) Ethyne
C) Ethane 0) All have same C-H bond length
Trimethyl amine is a weaker base than dimethyl amine due to
A) Inductive effect B) Electromeric effect
C) Resonance effect D) Steric effect
Identify an electrophile.
A) و80 )8 و50
©) NF, 0) ൨൧൧
Entropy is a measure of
A) Heat content B) Free energy
C) Enthalpy D) Randomness
Diels-Alder reaction is an example of which type of reaction ?
A) Electrophilic addition B) Nucleophilic addition
C) Pericyclic reaction 0) Sigmatropic reaction
Compounds HCN and HNC are
A) Tautomers B) Metamers
C) Functional isomers D) Conformers