Chemistry

Problem

A colourless water soluble solid 'X' on heating gives equimolar quantities of Y and Z. Y gives dense white fumes HCl and Z does so with

\text{NH}_3

. Y gives brown precipitate with Nessler's reagent and Z gives white precipitate with nitrates of

\text{Ag}^+

\text{Pb}^{2+}

and

\text{Hg}^+

. 'X' is: a.

\text{NH}_4\text{Cl}

\text{NH}_4\text{NO}_3

\text{NH}_4\text{NO}_2

\text{FeSO}_4