Aqueous solution contains Zn(CH3COO)2, Cd(CH3COO)2 and Cu(CH3COO)2. On passing H2S gas, there is a precipitation of ……. as sulphide.

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Zn2+

Cd2+

Cu2+

None of these

answer is A.

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Detailed Solution

A yellow to white ppt is formed based on the nature of the ion. For instance ZnS is white.

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