1.

Identify disproportionation reaction.

Answer»

`CH_(4)+2O_(2)toCO_(2)+2H_(2)O`
`CH_(4)+4Cl_(2)toC Cl_(4)+4HCl`
`2F_(2)+2OH^(-)to2F^(-)+OF_(2)+H_(2)O`
`2NO_(2)+2OH^(-)toNO_(2)^(-)+NO_(3)^(-)+H_(2)O`

Solution :In GIVEN reaction only one ELEMENT from oxidation and reduction is known as redox reaction.
`overset(+4)(2NO_(2))+2OH^(-)tooverset(+3)(NO_(2)^(-))+overset(+5)(NO_(3)^(-))+H_(2)O`


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