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Gold dissolves in aqua regia but silver ...

Gold dissolves in aqua regia but silver remains insoluble. Explain.

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Aqua regia is a mixture of conc. HCl and conc. `HNO_(3)` in the ratio of 3 : 1 by volume. Gold forms a soluble complex on heating with aqua regia

Silver forms a white precipitate of silver chloride on reacting with nascent chlorine. The precipitate is water insoluble.
`Ag +Cl to underset(("White ppt."))(AgCl)`
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