Organic Chemistry Basics 1 Question 17
17. The enolic form of acetone contains
(a) 9 sigma bonds, 1 pi bond and 2 lone pairs
$(1990,1 \mathrm{M})$
(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
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Answer:
Correct Answer: 17. (a)
Solution:
17.
It has $9 \sigma(6$ with $\mathrm{H}$, two $\mathrm{C}-\mathrm{C}$ and one $\mathrm{C}-\mathrm{O})$, one $\pi$-bond and two lone-pairs.
