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 '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.
B:-Podophyllotoxin
C:-Pinobanksin
D:-Genistein
Correct Answer:- Option-B
Question13:-Choose the set of secondary metabolites.
A:-Glucose, Resveratrol, Lignans
B:-Camptothecin, Codeine, Valine
C:-Malaxin, quercetin, Napthoquinones
D:-Malaxin, Codeine, Chlorophyll
Correct Answer:- Option-C
Question14:- is the secondary metabolite obtained from ‘tree of joy'.
A:-Malaxin
B:-Camptothecin
C:-Denbinobin
D:-Codeine
Correct Answer:- Option-B
Question15:-The techniques that help to determine functional group present in
isolated secondary metabolite of a plant is
A:-IR Spectroscopy
B:-Mass Spectroscopy
C:-UV-Visible Spectroscopy
D:-None of the above
Correct Answer:- Option-A
Question16:-Choose the correct test to detect the presence of glycosides in plant
extract.
A:-Keller Killiani test
B:-Mayers test
C:-Wagners test
D:-Salkowski's test
Correct Answer:- Option-A
Question17:-On shaking plant extract with acidified chloroform and allowing to
stand, yellow colour appears in lower layer. Presence of which phytochemical is
indicated by this test?
A:-Flavonoids
B:-Tannins
C:-Triterpenoids
D:-Steroids