1.

Which of the following pairs are tautomers ?

Answer»

`CH_3CH_2CHO " and" CH_3COCH_3`
`CH_3CHO " and " CH_2 =CHOH`
`C_2H_5COC_2H_5 " and " CH_3 COC_3H_7`
`CH_3-CH=CH-CH_3 " and " CH-3CH_2CH=CH_2`

Solution :
More delocalisation, more DISPERSAL of CHARGE and more STABILITY


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