Kerala PSC Previous Years Question Paper & Answer
Page:9
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Higher Secondary School Teacher (Junior) Chemistry' And exam conducted in the year 2023. And Question paper code was '033/2023/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.
Correct Answer:- Option-D
Question40:-Huang-Minlon reaction is a modification of which of the following
reaction ?
A:-Swern Oxidation
B:-Birch reduction
C:-Wolff Kishner reduction
D:-Pfitzner Moffatt reaction
Correct Answer:- Option-C
Question41:-Which among the following is incorrect statement for Hammett
parameter ?
for electron donating groups have negative value رہم
B:-2p0re<¢mets for inductive withdrawal effect of substituent
Ci-cpore
D:-A positive » value means more electron density in transition state than
starting material
Correct Answer:- Option-C
Question42:-No. of diagonal and off diagonal peaks obtained from ix COSY spectral
data of chloropropane
A:-3 and 2
B:-3 and 3
C:-2 and 3
D:-3 andl
Correct Answer:- Option-A
Question43:-Which type of shift is observed in the given photochemical reaction ?
a Meo
٢ ہن
A:-1, 3 shift in antrafacial pathway
B:-1, 3 shift in suprafacial pathway
C:-1, 7 shift in suprafacial pathway
D:-1, 7 shift in antarafacial pathway
Correct Answer:-Question Cancelled
Question44:-Which among the following are the products of photochemical
reaction, when diphenylketone reacts separately with isobutylene and propylene ?
1
௦
Ph