GK Questions & Answers on Science: Chemistry Terminology (Set 4)

Questions and Answers on Science: Chemistry Terminology (Set 4) consists of 10 MCQ to make your preparation simple with the help of some common definitions used in various chemical reactions which are important for various competitive examinations like IAS, PSC, SSC, Railway etc.

1. The organic compounds having the same molecular formula but different structures are called:

A. Atoms

B. Isomers

C. Homologous series

D. Haloalkanes

Ans. B

2. What is the part of the solution that dissolves the solute called?

A. Solvent

B. Sol

C. Salt

D. None of the above

Ans. A

3. Compounds that contain carbon are called:

A. Organic compound

B. Ionic compound

C. Alkynes

D. Molecular compound

Ans. A

4. What is the mixing of air into a liquid or solid called?

A. Aeration

B. Aldehyde

C. Actinides

D. Allotropy

Ans. A

5. What are the different physical forms in which an element can exist called?

A. Alkane

B. Alloy

C. Amine

D. Allotropes

Ans. D

6. The study of heat flow is called:

A. Combustion

B. Calorimetry

C. Diffusion

D. Electrolysis

Ans. B

7. What is the process called when a compound combines with oxygen gas to form water, heat and carbon dioxide?

A. Electrolysis

B. Combustion

C. Diffusion

D. Calorimetry

Ans. B

8. When a gas moves through an opening into a chamber that contains no pressure, it is called:

A. Effusion

B. Diffusion

C. Combustion

D. Osmosis

Ans. A

9. When a substance loses electrons, it is called:

A. Corrosion

B. Rust

C. Oxidation

D. Osmosis

Ans. C

10. What is the substance that has an unstable nucleus that can fall apart called?

A. Organic compound

B. Radioactive

C. Nuclear fission

D. Nuclear fusion

Ans. B

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