Question

The enolic form of acetone contains:
A. 9 sigma bonds, 2 pi bonds, and 1 lone pair
B. 10 sigma bonds, 1 pi bond, and 1 lone pair
C. 9 sigme bonds, 1 pi bonds, and 2 lone pairs
D. 8 sigme bonds, 2 pi bonds, and 2 lone pairs

Answer 1

Correct Answer - C

Both keto and enol forms of acitone contain `9sigma` bonds, `1pi` bond, and 2 lone pairs on O atoms. Note that every single bond is a sigma bond and every double bond contains one sigma and one pi bond.