Biomolecules Question 12

Question: Which statement is incorrect about peptide bond-

Options:

A) C-N bond length in proteins is longer than usual C-N bond length

B) Spectroscopic analysis shows planar structure of $ -\underset{O}{\mathop{\underset{||}{\mathop{C}}}}-NH- $ bond

C) C-N bond length in proteins is smaller than usual C-N bond length

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Due to resonance, $ C-N $ bond acquires some double bond character, hence shorter in length