Question

The I.R. frequency of c=0 group in acetone is less than that of acetaldehyde because -
(a) + I effect of CH3-group decreases double bond character and absorption occurs at
lower wave number.
(b) -I effect of CH3 group decreases double bond character and absorption occurs at
lower work number.
(C) +I effect of CH3 group increases double bond character and absorption occurs at
lower wave number.
(d) None of these
compared to acetone​

Answer 1

Answer:

B is the correct opinion