H2S will precipitate the sulphides of all the metals from the solution of chlorides of Cu, Zn and Cd if

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The solution is aqueous

The solution is acidic

The solution is dilute acidic

Any of the above solutions is present

answer is A.

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Detailed Solution

H2S in neutral medium provides sufficient S2- to precipitate Cu, Cd, Zn and Mn as sulphide.

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