Question

The enolic form of acetone contains

• A. 9 sigma bonds, 1 pi bond and 2 lone pairs
• B. 8 sigma bonds, 2 pi bonds and 2 lone pairs
• C. 10 sigma bonds, 1 pi bond and 1 lone pair
• D. 9 sigma bonds, 2 pi bonds and 1 lone pair

Answer 1

Answer: (A)

: It has 9 $\sigma $ (6 with H, two C-C and one
C- O), one $\pi $ bond and two lone-pairs