Question

The mesomeric effects of the groups

• A. +M, +M, -M, -M
• B. +M, -M, +M, -M
• C. -M,-M,+M,-M
• D. +M, -M , -M, +M

Answer 1

Answer: (B)

B has vacant p-orbital in $-B(C{H}_3{)}_2$