Which of the following is not a correct reason for the C-O bond length in phenol to be less than that in methanol?(a) Partial double bond character of C-O bond(b) Conjugation of lone pair of electrons with the aromatic ring(c) sp^2 hybridised sate of carbon of C-O bond(d) Repulsion between the electron lone pairs of oxygenI had been asked this question by my school teacher while I was bunking the class.Query is from Structures of Functional Groups topic in portion Alcohols, Phenols and Ethers of Chemistry – Class 12

Which of the following is not a correct reason for the C-O bond length

1.	Which of the following is not a correct reason for the C-O bond length in phenol to be less than that in methanol?(a) Partial double bond character of C-O bond(b) Conjugation of lone pair of electrons with the aromatic ring(c) sp^2 hybridised sate of carbon of C-O bond(d) Repulsion between the electron lone pairs of oxygenI had been asked this question by my school teacher while I was bunking the class.Query is from Structures of Functional Groups topic in portion Alcohols, Phenols and Ethers of Chemistry – Class 12
Answer» The CORRECT choice is (d) Repulsion between the electron lone PAIRS of oxygen The BEST explanation: The two lone pairs of ELECTRONS of oxygen are present in OH groups of both phenol and methanol and has an effect on the C-O-H bond angle and not the C-O bond length.

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