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Aqua regia is used for dissolving noble ...

Aqua regia is used for dissolving noble metals (Au, Pt, etc.). The gas evolved in this process is :

A

`N_(2)O_(3)`

B

`N_(2)`

C

`N_(2)O_(5)`

D

`NO`

Text Solution

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The correct Answer is:
D
`Au+HNO_(3)+HCl rarrHAuCl_(4)+NO+H_(2)O`
`Pt+underset(ubrace("aqua regia"))(HNO_(3)+HCl)rarrH_(2)PtCl_(6)+NO+H_(2)O`
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