A mixture of chlorides of copper, cadmium, chromium , iron and aluminium was dissolved in water
Channel: Doubtnut
Date: 2020-02-17

A mixture of chlorides of copper, cadmium, chromium , iron and aluminium was dissolved in water acidified with HCl and hydrogen sulphide gas was passed for sufficient time. It was filtered, boiled and a few drops of nitric acid were added while boiling. To this solution ammonium chloride and solution hydroxide were added and filtered. The filtrate shall give test for