An aqueous solution of salt (A) gives a white crystalline precipitate (B ) with NaCl solution.
Channel: Doubtnut
Date: 2020-04-12

An aqueous solution of salt (A) gives a white crystalline precipitate (B ) with NaCl solution. The filtrate gives a black precipitate (C ) when `H_(2)S` gas is passed into it. Compound (B) is precipitate (D) with NaI solution and cooling. The compound (A) does not give any gas with dil HCl but liberates a reddish brown gas on heating. Identify the compounds A,B,C and D. Write the chemical equations for varius reactions involved.