Which statement is correct for keto-enol tautomerism?

What statement is correct for Keto-enol tautomerism ?

Which of the following is/are incorrect about keto-enol tautomerism?

which molecule will be exhibit keto-enol tautomerism ?

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 compounds will not exhibit enozation?

Among the following how many of them will show keto-enol tautomerism?

What do you mean by the term tautomerism ? Explain keto-enol tautomerism.