Kerala PSC Previous Years Question Paper & Answer
Page:6
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.
B:-2
C:-3
D:-4
Correct Answer:- Option-C
Question27:-Which among the following statement is correct, when the given
compound is reduced with 7187, through Re-face and Si-face ?
3
A:-Re-face attack will give endo product, isoborneol
B:-Si-face attack will give endo product, borneol
C:-Si-face attack will give exo product, borneol
D:-Re-face attack will give endo product, borneol
Correct Answer:- Option-D
Question28:-Optical isomerism of 2, 3-pentadiene and BINAP are due to
A:-axial chirality
B:-helical chirality
C:-asymmetric carbon
D:-none of these
Correct Answer:- Option-A
Question29:-7-Bromo-1, 3, 5-heptatriene gives + A+ Br then which among the
following statement is correct for A ?
A:-an antiaromatic compound with 8 electrons
B:-an aromatic compound with 67 electrons
C:-homoaromatic compound with 6 electrons
D:-an aromatic with 87 electrons
Correct Answer:- Option-B
Question30:-The nature of intermediate and stereochemistry of addition reaction of
Br, with cyclic pentene
A:-Carbocation with syn addition
B:-Bromonium ion with syn addition
C:-Carbocation with anti addition
D:-None of these
Correct Answer:- Option-D
Question31:-A hexadiene with unsaturation in terminal positions on reaction with
thexylborane give