Question

Compare enolate A with enolate B.
Which of the following statements is true?

• A. A is more stable than B
• B. A and B have the same stability
• C. B is more stable than A
• D. No comparison of stability can be made

Answer 1

The correct option is A A is more stable than B

Reffer image.

For A , ther are 3 canonical structure.

For B,there are only two canonical structures .

$\therefore$ A is max stable than B.