When ammonium nitrite (NH4NO2) is heated, it decomposes to give nitrogen gas. This property is used to inflate some tennis balls.

What happens when a ammonium nitrite is heated?

Ammonium nitrite (NH4NO2) decomposes when heated to produce nitrogen gas and water vapor.

Which gas is evolved when ammonium nitrite is heated?

Nitrous oxide (Laughing gas) is liberated on heating ammonium nitrate.