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Reaction of Acids with Metals

Acids dissolv...

Question

Acids dissolve most metals, which special mixture of acids is used to dissolve gold?

A

Aqua Fortis

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B

Aqua Fresca

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C

Aqua Vitriola

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D

Aqua Regia

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Solution

The correct option is D
Aqua Regia

Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. It can dissolve noble metals like gold and platinum.

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