The gas liberated on heating a mixture of two salts with `NaOH`, gives a reddish brown precipitate w
Channel: Doubtnut
Date: 2020-02-17

The gas liberated on heating a mixture of two salts with `NaOH`, gives a reddish brown precipitate with an alkaline solution of `K_(2)Hgl_(4)`. The aqueous solution of the mixture on treatment with `BaCl_(2)` gives a white precipitate which is sparingly soluble in conc. HCl. On heating the mixture of `K_(2)Cr_(2)O_(7)` and conc `H_(2)SO_(4)` red vapours (A) are produced. The aqueous solution of the mixture gives a deep blue colouration (B) with potassium ferricyanide solution. Idnetify the radicals in the given mixture and write the balanced equations for the formation of (A) and (B).