Chemistry - Salt Analysis Question with Solution | TestHub

(A) ${\mathrm{Hg}}_2{\mathrm{I}}_2\downarrow$ (green ) $\underset{{\mathrm{H}}_2\mathrm{O}}{\overset{\text{ boiling }}{\to }}{\mathrm{HgI}}_2\downarrow$ (red) $+\mathrm{Hg}\downarrow$ (black)

(B) ${\mathrm{BiI}}_3\downarrow$ (black) $+{\mathrm{H}}_2\mathrm{O}\stackrel{\Delta }{\to }\mathrm{BiOI}\downarrow$ (orange) $+2{\mathrm{H}}^{+}+2{\mathrm{I}}^{-}$

(C)${\left[{\mathrm{Fe}}_3(\mathrm{OH}{)}_2{\left({\mathrm{CH}}_3\mathrm{COO}\right)}_6\right]}^{+}+{\mathrm{H}}_2\mathrm{O}\stackrel{\text{ boiling }}{\to }3\mathrm{Fe}(\mathrm{OH}{)}_2{\mathrm{CH}}_3\mathrm{COO}\downarrow +3{\mathrm{CH}}_3\mathrm{COOH}+{\mathrm{H}}^{+}$ (deep-red colouration) (reddish brown)

(D) ${\mathrm{Ag}}_2{\mathrm{SO}}_3\downarrow$ (white) $\underset{\text{ water }}{\overset{\text{ boiling }}{\to }}2\mathrm{Ag}\downarrow$ (grey) $+{\mathrm{SO}}_4{}^{2-}+2{\mathrm{H}}^{+}$