Chemistry MCQs

Question 1

Tetra ethyle lead (TEL) is

Accepted Answer

An antiknock compound

Answer

A catalyst in burning fossil fuel

Answer

An antioxidant

Answer

A reductant

Question 2

The drug ‘Marijuana’ is a

Accepted Answer

Sedative

Answer

Mental stimulant

Answer

Hallucinating substance

Answer

Tranquillizer

Question 3

The Refrigerant 'FREON' is

Accepted Answer

Difluoro Dichloro Methane

Answer

Calcium Tetra Fluoride

Answer

Fluorspar and Felspar

Answer

Hydrofluosilicic Acid

Question 4

The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are

Accepted Answer

Silver Iodide

Answer

Sodium Chloride

Answer

Dry ice or frozen carbon dioxide

Answer

All the above

Question 5

'Fire-fighting clothes' are made from

Accepted Answer

Asbestos

Answer

Mica

Answer

Talc

Answer

Steatite

Question 6

Trinitrotoluene is

Accepted Answer

Used as an explosive

Answer

Used to melt metals

Answer

Used to fuse two metals

Answer

Used as an abrasive

Question 7

The chief source for the production of nitrogeneous fertilizers is :

Accepted Answer

Ammonia

Answer

Nitric acid

Answer

Nitrogen

Answer

Nitrogen dioxide

Question 8

Which one of the following elements is used in the manufacture of safety matches?

Accepted Answer

Phosphorus

Answer

Graphite

Answer

Silicon

Answer

Sodium

Question 9

Zinc sulphide is commonly used as

Accepted Answer

Rodenticide

Answer

Fungicide

Answer

Herbicide

Answer

Deodorant