Give scientific reasons:
Alum is used in the process of water purification

Give scientific reasons: Air is a mixture

Give scientific reasons : Water is life.

Give scientific reasons: Pine oil is used in Forth floation

Give scientific reasons: Milk is a colloid.

Give scientific reasons: Methane is used as fuel.

Give scientific reasons: Sodium is always kept in kerosene

Give scientific reasons: Water is a compound

Give scientific reasons: Baking powder is used in the preparation of spongy bread and cake.