The p-Block Ele...

Hydrolysis of $\mathrm{N}\mathrm{Cl}_{3}$ gives $\mathrm{N}\mathrm{H}_{3}$ and $\mathrm{X}$. Which of the following is X?

Assertion (A): In the synthesis of ammonia by Haber's process, mixture of potassium and aluminium oxides can be used as promoter.
Reason (R): Promoter enhances the activity of catalyst.

Gas obtained by heating a mixture of ammonium chloride and slaked lime is:

 Which compound does not give ammonia gas on reaction with water ?

A metal X on heating in nitrogen gas gives Y. Y on treatment with $H_2O$ gives a colourless gas which when passed through $CuSO_4$ solution gives a blue colour. Y is :

Which of the following catalyst is used in the Haber's process for the manufacture of ammonia?

The ease of liquefaction of noble gases increases in the order

Which is soluble in water :

An element with variable (more than one) valency stored under water is: