Acids react with metal carbonates to liberate _____ gas.

All acids generate ________ gas on reacting with metals.

Some metal oxides react with acid as well as base to produce salt and water. They are known as amphoteric oxides. The examples of amphoteric oxides are

The reaction between an acid and a base to give a salt and water is known as a ______________ reaction.

Sodium hydroxide and hydrochloric acid react to form sodium chloride and water. Which reaction is this?

Number of molecules of water of crystallization in copper sulphate, sodium carbonate and Gypsum are