1.

Which of the following is not an example of tautomeric equilibrium?

Answer»

`CH_(2)=CH-underset(H)underset(|)C=OiffCH_(2)-CH=underset(H) underset(|)C-O^(-)`
`-N=N-underset(|)NHiff-NH-N=N-`

`-NH-underset(|)C=O iff-N=underset(|)C-OH`

Solution : No acidd `ALPHA`-HYDROGEN


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