Distinguish between metals and non-metals on the basis of their chemical properties.

(a) Define

(i) Malleability (ii) Ductility

(b) Name a non-metal which is very hard.

Give reasons, why

(a) immersion rods for heating liquids are made up of metallic substances?

(b) Non metals cannot be used for making bells?

State five uses of each, metals and non-metals.

Write the conditions under which rusting takes place.