Question

in the structure below, the sigma bond of the carbonyl is formed from the overlap of a(n) ____ atomic orbital of carbon and a(n) ____ atomic orbital of oxygen.
image of chemical structure: h₃c-c(=o)-n(h)-ch₃
options:
○ sp², sp²
○ sp³, sp²
○ sp³, sp³
○ sp, sp²

Explanation:

The carbonyl carbon (C=O) in the amide structure is \( sp^2 \)-hybridized (trigonal planar, part of a carbonyl group with double bond). Oxygen in the carbonyl is also \( sp^2 \)-hybridized (since it has a double bond and lone pairs, \( sp^2 \) hybridization for the sigma bond in C=O). So the sigma bond forms from \( sp^2 \) (C) and \( sp^2 \) (O) orbitals.

Answer:

A. \( sp^2, sp^2 \)