Question

what happens when copper sulphide is heated with hydrochloric acid​

Answer 1

Copper sulphide is treated with dilute hydrochloric acid. A gas evolved which has the smell of rotten eggs. HCl turns blue litmus red.

Answer 2

Answer: Copper Chloride and hydrogen sulphide are formed

Explanation: The black coloured copper sulphite turns blue and hydrogen sulphide gas is liberated.

CuS+dil.HCl→CuCl2 +H2S

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