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 ' Junior Research Officer (SR for ST)' And exam conducted in the year 2023. And Question paper code was '137/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
D:-
Correct Answer:- Option-B
Question56:-Which one is correct as per selection rule of Electrocyclic reactions
A:-anxsystem, thermally + Disrotatory
B:-4nxsystem, thermally + conrotatory
C:-(4n+2)r system, thermally > conrotatory
D:-Gn+2)r system, photochemically— disrotatory
Correct Answer:- Option-B
Question57:-Edman's reagent for protein sequencing is
A:-Phenyl isothiocyanate
B:-Benzyl thiocyanate
C:-1-fluoro-2, 4-dinitrobenzene
D:-2,4- dinitrobenzene
Correct Answer:- Option-A
Question58:-Which is not stereoregular?
A:-Syndiotactic
B:-lsotactic
C:-Atactic
D:-None of the above
Correct Answer:- Option-C
Question59:-What is the name used to refer to the type of ion represented by: M+
A:-molecular radical cation