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Nitric oxide acts as a reducing agent in...

Nitric oxide acts as a reducing agent in which of the following reaction ?

A

`4NH_(3) + 5O_(2) rarr 2NO + 6H_(2)O`

B

`2NO + 3l_(2) + 4 H_(2)O rarr 2NO_(3)^(-) + 6l^(-) + 8 H^(+)`

C

`2NO + H_(2)SO_(3) rarr N_(2)SO_(4)`

D

`2NO + H_(2)S rarr N_(2)O + S + H_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
B
`2 overset(+2)(N)O + 3l_(2) + 4H_(2)O rarr 2 overset(+5)(N)O_(3)^(-) + 6l^(-) + 8H^(+)`
Hence, NO acts as a reducing agen t and reduces `l_(2)` to `l^(-)` since, the oxidation number of nitrogen changes from `+2` in `NO` to `+5` in `NO_(3)^(-)`
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