‘A’                burns in nitrogen and forms           ‘B’

(Element                                                 (Ionic Compound)

             ‘B’                         +                   ${\mathrm{H}}_2\mathrm{O}⟶{\mathrm{C}}^{\mathrm{\prime }}+{\mathrm{D}}^{\mathrm{\prime }}$

(Ionic Compound) 

${ }^{\mathrm{\prime }}{\mathrm{C}}^{\mathrm{\prime }}\left(\mathrm{aq}\right)+{\mathrm{CO}}_2⟶\text{ milkiness appears. }$

Consider the above information and answer the following questions