Which statement is incorrect about peptide bond?

Options

A. C-N bond length in proteins is longer than usual bond length of C-N bond
B. Spectroscopic analysis shows planar structure of
C. C-N bond length in proteins is smaller than usual bond length of C-H bond
D. none of these

Answer

A

Explanation

Due to resonance , C-N bond in peptide has some double bond character.
As such the C-N bond peptide is shorter (not longer) than usual C-N bond