Give reasons :

In the lab preparation of ammonia flask is fitted in slanting position.

State the following condition required in the Haber's process.

Temperature

State the following condition required in the Haber's process.

Pressure

State the following conditions required in the Haber's process.

Catalyst

Correct the following :

A reddish brown precipitate is obtained when ammonium hydroxide is added to ferrous sulphate.

Correct the following :

Liquid ammonia is a solution of ${\mathrm{NH}}_3$.

Correct the following :

Finely divided platinum is used in Haber process.

Correct the following :

$\mathrm{Conc}.{\mathrm{H}}_2{\mathrm{SO}}_4$ is a drying agent for ${\mathrm{NH}}_3$.