NEET 2001 Chemistry question

(peptide bond) which statement is incorrect about peptide bond : -

(1)C–N bond length in protiens is longer than usual bond length of N-bondCorrect
(2)Spectroscopic analysis show planar structure of group
(3)C–N bond length in proteins is smaller than usual bond length of C–N bond
(4)None of above

Answer: (1)

Solution

The lone pair on nitrogen is delocalised into the carbonyl group (resonance: ). This gives the C-N bond a partial double-bond character, so it is shorter than a normal C-N

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-088799