The bottle of liquid ammonia should be placed in cold water or ice for some time before opening its lid.

What happens in the following processes? Write with a balanced chemical reaction.

1. The mixture of ammonium chloride and calcium hydroxide is heated.
2. Ammonia is mixed with water.
3. Ammonia reacts with hydrochloric acid.

Write any two physical properties of ammonia gas.

When a burning ribbon of a metal was taken in a jar containing gas, it formed white and black powder. The white powder can be used as medicine to cure hyperacidity.

1. What happens when the white substance is dissolved in water? Write only balanced chemical equation.
2. How does the solution help to reduce the hyperacidity of stomach?

What is the odour of ammonia gas?

Write the name of the compound formed when ammonia dissolves in water.