Which of the following statement is not true for carbonyl `(gtC=O)` group?

Options

A. The carbon atom of the carbonyl group is `sp^(2)`-hybridised
B. The `C = O` bond length is longer than `C = C` bond length.
C. The dipole moments of aldehydes and ketones lie in the range `2*3` to `2*8 D`.
D. The portion of the molecule immediately surrounding the carbonyl group is planar.

Answer

B

Explanation

`gtC = O` bond length `(123 "pm")` is shorter than `gtC = Clt` bond lengsth (134 pm).