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What is the final chemical form of Gold ...

What is the final chemical form of Gold (Au) when it is dissolved in aqua regia?

A

Au

B

AuCl

C

`AuCl_(2)`

D

`[AuCl_(4)]^(-)`

Text Solution

Verified by Experts

The correct Answer is:
D
When gold (Au) dissolved in aqua-regia, it forms chloroauric `(HAuCl_(4))` ion. It will react very slowly with chlorin gas at room temperature to form gold chlorin. We know that aqua-regia is
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