1.

Among the following the pair that is not a pair of metamers

Answer»

`CH_(3)OCH_(2)CH_(2)CH_(3)`&`CH_(3) CH_(2)OCH_(2)CH_(3)`
`CH_(3)OCH_(2)CH_(2)CH_(3)`&`CH_(3)OCH_(2)(CH_(3))`
`CH_(3)NHCH_(2)CH_(3)`&`CH_(3)NHCH_(2)CH_(3)`
`CH_(3)COCH_(2)CH_(2)CH_(3)`&`CH_(3)CH_(2)COCH_(2)CH_(3)`

Answer :B


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