NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Impurities of Cu and Ag from gold are removed by

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Correct option: D

Both (2) and (3)

Impurities of Cu and Ag from gold are removed by boiling impure gold with concentrated

{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}

and electrolytically, as these methods effectively separate the metals based on their chemical properties.

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