Kerala PSC Previous Years Question Paper & Answer

Title : Research Officer- Chemistry/ Biochemistry
Question Code :


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.

page: 1 out of 23
Excerpt of Question Code: 027/2023/OL


Question 27/2023/0L

Paper Code:

Category 130/2020


Exam: Research Officer- Chemistry/ Biochemistry

Date of Test 28-04-2023
Department Ayurveda Medical Education Drugs Standardisation Unit

Question1:-Which of the following pair is correct about solubilizers and the bond
they disrupt?

A:-Urea - hydophobic interaction, SDS - hydrogen bond, B - mercaptoethanol -
disulpide bridges

B:-Urea - hydrogen bond, SDS - hydrophobic interaction, B - mercaptoethanol -
disulpide bridges

C:-Urea - hydrogen bond, SDS - disulpide bridges, B - mercaptoethanol -
hydrophobic interaction

D:-Urea - hydrophobic interaction, SDS - disulphide bridges, B -
mercaptoethanol - hydrogen bond

Correct Answer:- Option-B

Question2:-Which among the following substituents enhance fluorescence of a

0) -OH

(1) ட

(ii) -NHCH3

(iv) -COOH
A:-(i) and (iii)
B:-(i) and (iv)
C:-(ii) and (iv)
D:-(ii) and (iii)
Correct Answer:- Option-A

Question3:-Nuclei that do not have possess spin property includes
(i) ष्टः

(1) ४6६

(0) നം

(iv) ட
A:-(i) and (iii)
B:-(ii) and (iii)

C:-(i) and (iv)
D:-(ii) and (iv)
Correct Answer:- Option-C

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