1.

Which of the following pairs does not represent a pair of isomers?

Answer»

`CH_(3)CH_(2)OCH_(2)CH_(2)CH_(3)`
`CH_(3)underset(CH_(3))underset(|)(CH)OCH_(2)CH_(3)`
`CH_(3)CH_(2)COOHandCH_(3)COOCH_(3)`
`CH_(3)CH_(2)NO_(2)andNH_(2)CH_(2)COOH`
`C_(6)H_(5)underset(O)underset(||)(C)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-C_(6)H_(5)`and `CH_(3)-underset(C_(6)H_(5))underset(|)overset(CH_(3))overset(|)(C)-underset(O)underset(||)(C)-C_(6)H_(5)`

Answer :D


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