Kerala PSC Scientific Officer 2021 Provisional Answer Key

Kerala Public Service Commission has released the provisional answer key of Scientific Officer, Chemical Examiners Laboratory -Cat No: 308/2019 exam 2021. The objective OMR written examination of the Scientific Officer was held in various districts on 13th April 2021. The candidates who have appeared in the exam can check out the answers with the Provisional answer key, published on the official website. Check the article for the direct link to download Kerala PSC Scientific Officer – Chemical Examiners Laboratory provisional answer key 2021.

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Kerala PSC Scientific Officer Exam Overview

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• June 2021
• July 2021

Scientific Officer Provisional Answer Key 2021

Candidates having the following educational qualification was only eligible to apply for the Scientific Assistant post:

Master’s Degree in Chemistry or equivalent branches of Chemistry or in Forensic Science or Biochemistry approved by any University in Kerala obtained after a regular course of study with 50 % marks.

The exam for the same was held on 13 April 2021. And, the provisional answer key was released on 08th June 2021.

Download the Provisional Answer Key of Scientific Officer () free pdf download:

Question Code: : 040/2021

The medium of Question- English

Name of Post: Scientific Officer

Department: Chemical Examiners Laboratory

Question Booklet Alpha Code A

SCIENTIFIC ASSISTANT PAK

How to file objections against Provisional Answer Key?

Candidates can check the provisional answer key and can file their complaints online, if any, regarding the Provisional Answer Key until 5 (Five) days after the examination is over. For submitting the complaints regarding the answer key, follow these steps:

• Log in to the One-Time registration profile of Kerala PSC- Thulasi.
• Then click on the tab- ‘Answer Key Complaints’.
• In the newly opened window click on ‘File a Complaint.
• The enter details like- Date of Exam, Name of Post, Question Number, Complaint, and the Reference or proof-like books or journals to resolve your complaint.
• The save the same.

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The final answer key will be released after the complete corrections of the complaints reported by the candidates against the provisional answer key. After that the shortlist for the candidates who have scored above the cut-off marks will be published. The cut-off marks will be decided by the Kerala PSC and depend on the number of candidates who appeared for the exam, difficulty level of the exam, vacancies reported, etc.

Scientific Officer – Question Paper

The candidates who have attempted the other sets B, C, D, and who want to refer questions for the next exam can download the question papers and file them. Candidates can compare the questions and respective answers for them in the provisional answer key. Also, practicing the previous question papers is always a good strategy to understand the exam pattern, syllabus, and types of questions for upcoming exams. Moreover, it will be a good source of the repeated questions that can be expected for every Kerala PSC exam.

Go through some of the questions asked in the exam:

1. Which of the following molecule does not show a rotational spectrum?

A) HCl

B) IF

C) CO

D) H2

2. For reactions having half lifetime 10–6 or less the method used for the study of fast reaction

A) Flash photolysis

B) Pulse radiolysis

C) Stopped flow method

D) Relaxation method

3. Which of the following sequence is correct in cholesterol synthesis?

A) Mevalonate – Isoprenoid units – Squalene – Lanosterol

B) Mevalonate – Squalene – Isoprenoid units – Lanosterol

C) Mevalonate – Isoprenoid units – Lanosterol – Squalene

D) Mevalonate – Lanosterol – Isoprenoid unit

4. Diphtheria toxin inhibits translation by biding with

A) eIF-2

B) 40 S subunit of the ribosome

C) eEF-2

D) 60 S subunit of the ribosome

5. A tRNA molecule that is supposed to carry cysteine (tRNAcys) is mischarged so that it actually carries alanine (ala-tRNAcys). What will be the fate of this alanine residue during protein synthesis?

A) It will be incorporated into a protein in response to an alanine codon

B) It will be incorporated into a protein in response to a cysteine codon

C) It will remain attached to the tRNA, as it cannot be used for protein synthesis

D) It will be chemically converted to cysteine by cellular enzymes

Download the Question Paper( Alpha Code A) of Scientific Officer, Chemical Examiners Laboratory  free pdf download:

SCIENTIFIC OFFICER CHEMICAL EXAMINERS LABORATORY

Download the Question Paper( Alpha Code A) of Scientific Officer Biology free pdf download:

scientific officer biology QUESTION PAPER

Download the Question Paper( Alpha Code A) of Scientific Officer Physics free pdf download:

SCIENTIFIC OFFICER PHYSICS QUESTION PAPER

Download the Question Paper( Alpha Code A) of Scientific Officer Chemistry free pdf download:

SCIENTIFIC OFFICER CHEMISTRY QUESTION PAPER

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