1.

Which of the following pairs are tautomers?

Answer»

`CH_(3)CH_(2)CHO and CH_(3)COCH_(3)`
`CH_(3)CHOandCH_(2)=CHOH`
`C_(2)H_(5)COC_(2)H_(5)andCH_(3)COC_(3)H_(7)`
`CH_(3)-CH=CH-CH_(3)andCH_(3)CH_(2)CH=CH_(2)`

ANSWER :B


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