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Concentrated nitric acid upon long stand...

Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of :

A

NO

B

`NO_(2)`

C

`N_(2)O`

D

`N_(2)O_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
`4HNO_(3) rarr 4NO_(2) + O_(2) + 2H_(2)O`
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