The process whereby a hydrogen atom attached to the alpha-carbon of carbonyl compound moves to the carbonyl oxygen atom is known as enolization or keto-enol tautomerism. Isomeric carbonyl and enol structure are tautomers. ltbgt Normally, the carbonyl form is favoured but structure factor marked affect K_(T). Which of the following has least value of K_(T)?

The process whereby a hydrogen atom attached to the alpha-carbon of ca

1.	The process whereby a hydrogen atom attached to the alpha-carbon of carbonyl compound moves to the carbonyl oxygen atom is known as enolization or keto-enol tautomerism. Isomeric carbonyl and enol structure are tautomers. ltbgt Normally, the carbonyl form is favoured but structure factor marked affect K_(T). Which of the following has least value of K_(T)?
Answer» `CH_(3)-overset(O)overset(\|\|)(C)-UNDERSET(O)underset(\|\|)(C)-CH_(3)` `CH_(3)-overset(O)overset(\|\|)(C)-CH_(2)-overset(O)overset(\|\|)(C)-CH_(3)` Solution :Keto is more stabilise than enol