Question

• A.
• B.
• C.
• D. All

Answer 1

Answer: (A)

This is an example of Benzil-Benzilic acid rearrangement reaction
$\stackrel{\ominus }{\mathrm{OH}}$ attacks at the more reactive $(C=O)$ group, (containing more KWG or less EDG). Et is more EDG than Me (due to $+I$ effect; here no H.C.). Therefore, $\stackrel{\ominus }{\mathrm{OH}}$ attacks $(C=O)$ with $(Me)$ group