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Question

Which if the following noble metal cannot dissolve in aqua regia?

A
Gold
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B
Platinum
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C
Silver
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D
Palladium
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Solution

The correct option is C Silver
Palladium, platinum, gold and mercury can be dissolved in aqua regia, a highly concentrated mixture of hydrochloric acid and nitric acid, but iridium and silver cannot dissolved in aqua regia.

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