1.

Which one of the following reaction is a fractional order reaction ?

Answer»

`2NO+O_2rarr2NO_2`
`CH_3CHO_((g))rarrCH_(4_((g))+CO^((g))`
`2H_2O_(2(aq))rarr2H_2O_((l))+O_(2_(g))`
`H_2+Br_(2)rarr2HBr`

Answer :B


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