NEET Chemistry Properties of Phenols MCQ Question
What is the carbon–oxygen bond length in phenol, and why is it slightly shorter than that in methanol?
136 pm; due to partial double bond character
140 pm; because of ionic character
136 pm; because of sp3 hybridised state
140 pm; due to resonance stabilization
Correct Answer
Detailed Explanation
The carbon–oxygen bond length in phenol is 136 pm, which is slightly less than in methanol due to partial double bond character from the conjugation of the unshared electron pair of oxygen with the aromatic ring.
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