Gypsum is

The colour of the precipitate of ferric hydroxide is

The ammonium salt used in leclanchecell is

In nitrogen fixation, atmospheric nitrogen is converted into

Brown ring test is used to test the presence of

The oxidation product of ammonia in presence of platinum catalyst is

Washing Soda is

Amatol is a mixture of ammonium nitrate and

The product formed when excess chlorine reacts with ammonia

Ammonal consists of ammonium nitrate and