Question

Which of the following characteristics are true about a typical peptide (amide) bond?
The bond is planar.
There is free rotation about the carbonyl carbon and nitrogen bond.
There is substantial double-bond character to this bond.
There is a net negative charge on nitrogen and net positive charge on oxygen.

Answer 1

Answer:

The bond is planar. There is free rotation about the carbonyl carbon and nitrogen bond.

Explanation:

The peptide bond is planar and for this reason there is free rotation about the carbonyl carbon and nitrogen bond. Peptide bonds don't have double-bonds or delocalized electrons in their structure. Both oxygen and  nitrogen have a net negative charge on the peptide bonds.