Name any two useful salts and mention their uses.

Potassium hydroxide, or caustic potash,  (KOH)is a salt that is used in a wide variety of industrial applications. The major uses are in the production of liquid fertilizers, and potassium soaps and detergents.

Sodium hydroxide is a Table salt, (NaOH). It is used as Flavouring agent in Food. It is also used in Bleaching and Tanning Industry.