The number of electrons involved in the ...

The number of electrons involved in the reduction of nitrate `(NO_(3)^(ө))` to hydrazine `(N_(2)H_(4))` is

A

`8`

B

`7`

C

`3`

D

`5`

Verified by Experts

The correct Answer is:

B

`14e^(-)+2NO_(3)^(ө)rarrN_(2)H_(4)`
`2x-12=-2, 2x+4=0`
`2x=10`, 2x=-4`

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