Kerala PSC Scientific Officer Chemistry Previous Year Question Papers PDF Download

Kerala PSC Scientific Officer Chemistry previous year question papers PDF help candidates understand the standard of questions asked in earlier Kerala PSC recruitment exams and practise Chemistry at the post graduate level. For aspirants targeting Kerala PSC Scientific Officer Chemistry 2027 under the Kerala Police Service - Forensic Science Laboratory, get previous question papers, answer-key links and selected questions with answers for practice. 

Candidates preparing for the upcoming Kerala PSC Scientific Officer 2027 recruitment can use these resources along with the syllabus and official notification.

Kerala PSC Scientific Officer Chemistry Previous Year Question Papers

Kerala PSC Scientific Officer Chemistry Previous Year Question Papers are available on the official website for the two exams conducted before. Kerala PSC has conducted Scientific Officer (Chemistry) recruitment under different category numbers. The earlier recruitment was notified under Category No. 027/2020, while a subsequent recruitment was conducted under Category No. 633/2023.

Kerala PSC Scientific Officer Chemistry Exam under Category No. 027/2020 was conducted on 28 January 2021 and the question code was 02/02/2021. The question paper was in English and the Commission provides the OMR question paper and answer key. 

The later Kerala PSC Scientific Officer Chemistry Exam under Category No. 633/2023 was conducted on 21 November 2024 with Question Paper Code 163-2024.
 

Kerala PSC Scientific Officer Chemistry Previous Year Question Papers PDF Download Links

The official Kerala PSC Scientific Officer Chemistry Previous Year Question Papers PDF Download Links are provided in the following table along with the respective OMR question paper and answer key. Download KPSC Scientific Officer exam questions and start your preparation to the next level.

Kerala PSC Scientific Officer Chemistry Previous Year Questions and Answers

Kerala PSC Scientific Officer Chemistry Previous Year Questions and Answers become more useful when candidates actually work through the questions instead of only downloading the PDFs. Try each question first and then check the answer. This helps candidates identify whether a mistake comes from a conceptual gap, calculation error, lack of revision or unfamiliarity with the topic.

Question 1

The bonding present between Nitrogen and Phosphorous in phosphonitrilic compound is 

A) pπ – pπ bonding 

B) pπ – dπ bonding 

C) Covalent bonding 

D) Coordinate b 

Answer: D. Coordinate b 

Question 2

Select the appropriate option regarding the quadrupole splitting in the mossbauer spectrum of ferricyanide and ferrocyanide ions. 

A) Both ions exhibit quadrupole splitting 

B) Ferricyanide ion exhibit quadrupole splitting, whereas ferrocyanide do not 

C) Ferrocyanide ion exhibit quadrupole splitting, whereas ferricyanide do not 

D) Both ions do not exhibit quadrupole splitting 

Answer: B. Ferricyanide ion exhibit quadrupole splitting, whereas ferrocyanide do not 

Question 3

Which among the following pairs is magic numbers for closed nuclear shells ? 

A) 12, 20 

B) 20, 30 

C) 50, 82 

D) 82, 128 

Answer: C. 50, 82

Question 4

The only metal known to exist in a simple cubic lattice form 

A) Copper 

B) Polonium 

C) Gold 

D) Iron 

Answer: B. Polonium 

Question 5

Which among the following electrolytes is not employed in a Solid Oxide Fuel Cell (SOFC)? 

A) yttria-doped Barium Zirconate 

B) Scandia-doped Zirconia 

C) yttria-doped Zirconia 

D) Gadolinium-doped Ceria 

Answer: A. yttria-doped Barium Zirconate 

Question 6

Which among the following statements is not true about ZEBRA batteries ? 

A) Sodium-Nickel Chloride batteries 

B) Fully rechargeable 

C) Operating temperature below 0°C 

D) Uses β-alumina solid electrolyte 

Answer: C. Operating temperature below 0°C 

Question 7

position of the widely used ferroelectric material PZT ? 

A) Phosphorous Zirconium Tungstate 

B) lead Zirconium Titanate 

C) Potassium Zinc Titanate 

D) Potassium Zirconium Tungstate 

Answer: B. lead Zirconium Titanate 

Question 8

In a cubic crystal both 111 and 200 reflections are present but not 100. What is the Bravais lattice ? 

A) P 

B) I 

C) C 

D) F 

Answer: D. F

Question 9

Which of the following reactions is used for synthesis of α-pinene from ethyl pinonate and α haloester ? 

A) mannich reaction 

B) Darzen condensation 

C) Benzoin condensation 

D) Cannizaro reaction

Answer: B. Darzen condensation

Question 10

The cyclization of dinitrile in the presence of base is 

A) dieckmann reaction 

B) Thorpe reaction 

C) Claisen condensation 

D) Knoevenagel reaction 

Answer: B. Thorpe reaction

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Kerala PSC Scientific Officer Chemistry Frequently Asked Questions

What is the question paper code for Kerala PSC Scientific Officer Chemistry 2021?

The question code for the Category No. 027/2020 examination held on 28 January 2021 was 020/2021. The question paper was in English.

What is the question paper code for Kerala PSC Scientific Officer Chemistry 2024?

The Category No. 633/2023 examination held on 21 November 2024 had Question Paper Code 163-2024. The medium was English.

How many marks is the Kerala PSC Scientific Officer Chemistry exam?

The 2021 Kerala PSC Scientific Officer Chemistry exam programme specified 100 marks. 

What was the duration of the Scientific Officer Chemistry 2021 exam?

The 2021 Kerala PSC Scientific Officer Chemistry exam had a duration of 1 hour 15 minutes. It was an objective multiple-choice examination conducted through OMR/Online mode.

What is the salary of a Kerala PSC Scientific Officer Chemistry?

For Category No. 633/2023, the notified scale of pay was ₹51,400–₹1,10,300. Candidates should check the applicable notification for any future recruitment. 

Is Scientific Officer Chemistry under the Kerala Police Forensic Science Laboratory?

Yes. The relevant recruitment categories discussed here are for Scientific Officer (Chemistry) in the Kerala Police Service / Police (Forensic Science Laboratory).