1.

In the equation, NO_(2)^(- ) +H_(2)O rarr NO_(3)^(-)+ 2H^(+) + "ne"^(-).n. stands for

Answer»

`H^+`
`E^(-)`
` 2e^(-)`
`3e^(-)`

Solution :`{:(NO_(2)^(-) ,rarrNO_(3)^(-)),(+H_(2)O,+2H^(+)),(,+2e^(-)):}`


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