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When hydrogen sulphide gas is passed thr...

When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example of

A

a combination reaction

B

a displacement reaction

C

a decomposition reaction

D

a double displacement reaction.

Text Solution

Verified by Experts

The correct Answer is:
D
`CuSO_(4)+H_(2)StoCuS+H_(2)SO_(4)`
In this reaction, exchange of ions takes place between the reactants so, it is a double displacement reaction.
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