Chemistry - Salt Analysis Question with Solution | TestHub

Ferric ions gives brown precipitate with NaOH solution, which is insoluble in excess of NaOH solution

${\mathrm{Cu}}^{2+}$ ions gives brown ppt. with ${\mathrm{K}}_4\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]$ solution

Ferric ions gives brown colouration with ${\mathrm{K}}_3\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]$ solution

Ferrous ion gives blue ppt with ${\mathrm{K}}_4\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]$ solution