Out of the following metallic ions : Al3+ , Ca2+ , Cu2+ , Pb2+ and Zn2 – InterviewSolution

1.	Out of the following metallic ions : Al3+ , Ca2+ , Cu2+ , Pb2+ and Zn2+ ; which one forms a white hydroxide which dissolves in an excess of either aqueous sodium hydroxide or ammonium hydroxide ?
Answer» Zn²⁺ is white hydroxide which dissolves in an excess of either aqueous sodium hydroxide or ammonium hydroxide.

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