Chemistry - Salt Analysis Question with Solution | TestHub

${\mathrm{Fe}}^{2+}$ ion also gives blood red colour with ${\mathrm{SCN}}^{-}$ion.

${\mathrm{Fe}}^{3+}$ ion also gives blood red colour with ${\mathrm{SCN}}^{-}$ion.

On passing ${\mathrm{H}}_2\mathrm{S}$ into ${\mathrm{Na}}_2{\mathrm{ZnO}}_2$ solution a white ppt of $\mathrm{ZnS}$ is formed.

Cupric ion reacts with excess of ammonia solution to give deep blue colour of ${\left[\mathrm{Cu}{\left({\mathrm{NH}}_3\right)}_4\right]}^{2+}$ ion.