100+ Inorganic Chemistry MCQ Questions and Answers pdf - 1

Question: 1

What are metals?

Elements which are generally hard, malleable, ductile and are good conductors of heat and electricity and which possess luster are classified as metals.

Example : Copper, Iron, Gold, Silver

Question: 2

What are non metals?

Elements which are brittle, non lustrous and are poor conductors of heat and electricity are classified as non metals.

Example – Carbon, Nitrogen, Hydrogen, Sulphur

Question: 3

What is galvanisation?

Galvanisation is a method of preventing corrosion.

A thin coating of zinc on iron objects prevents rusting.

This process of a giving a thin coating of zinc on iron is called galvanisation.

Question: 4

What is the action of oxygen on metals?

Metals combine with oxygen to give basic oxides.

Question: 5

What are the uses of metals?

i. Iron and steel are used for making machinery, ships, pipes, automobiles , trains, agricultural implements etc.

ii. Copper is extensively used in making electrical appliances and making alloys like brass and bronze.

iii. Aluminium is used for making utensils, electric cables, aluminium foil and aluminium paint.

iv. Widely used alloys, duralumin and magnalium contain aluminium.

v. Zinc is used to protect iron from rusting.

vi. Lead is used to storage batteries.

vii. Tin is used in tinning of cooking vessels.

viii. Some metals are used as catalysts in chemical reactions.