Chemistry GK Questions and Answers for Competitive Exams

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Chemistry GK Questions and Answers for Competitive Exams

Chemistry GK Questions and Answers for Competitive Exams is a concise and comprehensive article designed to help aspirants prepare for various competitive examinations that include a chemistry section. Covering a wide range of topics, this article serves as a valuable resource for students, job seekers, and anyone seeking to test and enhance their knowledge of chemistry.

Chemistry GK Questions

The article Chemistry GK Questions and Answers features a curated selection of general knowledge (GK) questions on fundamental principles, theories, elements, compounds, reactions, and applications of chemistry. Each question is followed by a clear and concise answer, ensuring that readers not only gauge their knowledge but also understand the underlying concepts.

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Chemistry GK Questions and Answers for Competitive Exams

Q :  

In what form is alum used ?

(A) Painkiller

(B) Fertilizer

(C) antiseptic

(D) water purifier

Correct Answer : D

Q :  

Which of the following is an oxidising agent ? 

(A) KMnO4

(B) K2 Cr2 07

(C) HNO3

(D) All of the above

Correct Answer : D

Q :  

Identify the man - made element 

(A) Carbon

(B) Gold

(C) californium

(D) calcium

Correct Answer : C

Q :  

What color does blue litmus paper turn into?

(A) White

(B) Red

(C) Black

(D) Violet

Correct Answer : B

Q :  

What is the hearing capacity of a human being?

(A) 20 Hz to 2000 Hz

(B) 20 Hz to 20000 Hz

(C) More than 20000 Hz

(D) 200 Hz to 20000 Hz

Correct Answer : B

Q :  

Which of the following compound contains only Carbon and Hydrogen atoms in their formation?

(A) Chloroform

(B) Teflon

(C) Ethanol

(D) Benzene

Correct Answer : D

Q :  

Limestone on decomposition gives_______and carbon dioxide.

(A) Calcium hydrogen carbonate

(B) Calcium carbonate

(C) Calcium hydroxide

(D) Calcium oxide

Correct Answer : D

Q :  

What are Rubies and Sapphires chemically known as ? 

(A) Silicon dioxide

(B) Aluminum oxide

(C) Lead tetroxide

(D) Boron nitride

Correct Answer : B

Q :  

Chemically vermillion is : 

(A) Calcium carbonate

(B) Potassium sulphide

(C) Mercuric sulphide

(D) Sodium chloride

Correct Answer : C

Q :  

What is the chemical formula of sodium carbonate ?

(A) Na2CO3

(B) NaCO3

(C) Na1CO2

(D) Na1CO2

Correct Answer : A

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    Rajesh Bhatia

    A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at

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