Question

Give one chemical test to distinguish between the following pairs of compounds.

Zinc sulphate solution and Zinc chloride solution.

Answer 1

Chemical test to distinguish between Zinc sulphate solution and Zinc chloride solution:

${\mathrm{ZnSO}}_4\mathrm{solution}$	${\mathrm{ZnCl}}_2\mathrm{solution}$
We will add ${\mathrm{BaCl}}_2$ solution to the above solution, white precipitates of ${\mathrm{BaSO}}_4$ are formed.	We will add ${\mathrm{BeCl}}_2$ solution to the above solution, no effect is visualised.
${\mathrm{ZnSO}}_4+{\mathrm{BaCl}}_2⟶{\mathrm{BaSO}}_4\downarrow +{\mathrm{ZnCl}}_2$	${\mathrm{ZnCl}}_2+{\mathrm{BaCl}}_3\to \mathrm{No}\text{visual effect}$