Kerala PSC Previous Years Question Paper & Answer
Page:17
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Research Officer- Chemistry/ Biochemistry' And exam conducted in the year 2023. And Question paper code was '027/2023/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.
electrons in the new p-orbital making resulting the molecule aromatic
D:-Cyclopentadiene has conjugated double and once deprotonated, the
orbitals on the carbon atom would re-hybridize from s»* to sp? making resulting the
molecule anti atomatic
Correct Answer:- Option-C
Question70:-The mechanism of oxymercuration of an alkene to yield an alcohol
follows
A:-Electrophilic Addition Reaction
B:-Nucleophilic Addition Reaction
C:-Free radical Addition Reaction
D:-Electrophilic substitution Reaction
Correct Answer:- Option-A
Question71:-The alkaloid pilocarpine extracted from the leaves of pilocarpus
microphyllus is an
A:-Pyridine Alkaloid
B:-lsoquinoline Alkaloid
C:-Imidazole Alkaloid
D:-Piperidine Alkaloid
Correct Answer:- Option-C
Question72:-In IR spectraum of para nitro phenyl acetate, Carbonyl absorption band
may range on
A:-1860 - 1865 دمن
B:-1760-1765 em
C:-1600 - 1625
D:-1650 - 1655 حم
Correct Answer:- Option-B
ಗಾದ
Question73:-How many peaks could be expected in the proton decoupled 5८ NMR
spectra of 1-methyl cyclohexene and methylcyclohexane respectively?
A:-Seven and Five
B:-Six and four
C:-Three and Five
D:-Seven and Four
Correct Answer:- Option-A
Question74:-Which one of the following group of compound belongs to Terpenes?
A:-Caravone, geraniol and Chrysene
B:-Chrysene, Geraniol and Myrcene
C:-Caravone, Geraniol and Cortisone
D:-Caravone, Geraniol and Myrcene