Question

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For-C- N H- (peptide bond )
Which statement is incorrect about peptide
bond?
(a) C — N bond length in proteins is longer
than usual bond length of the C — N bond
(b) Spectroscopic analysis shows planar
structure of the —C — NH —group

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(c) C — N bond length in proteins is smaller
than usual bond length of the C—N bond
(d) None of the above

Answer 1

(b) Spectroscopic analysis shows planar

structure of the —C — NH —group

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Explanation:

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Answer 2

Answer:

Peptide bond is formed by the reaction of

−COOH group of one amino acid with the

−NH2group of another amino acid and represented as

As partial double bond character is found between C− N bond, the length of C− N in protein should be smaller than usual C− N bond.

Answer --› C

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