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  4. Electrophilic substitution reaction in phenol take place at:

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Q. Electrophilic substitution reaction in phenol take place at:

Rajasthan PMTRajasthan PMT 2002Alcohols Phenols and Ethers

Solution:

In phenol,
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oxygen atom containing two lone pair of electrons activates the benzene ring by increasing electron density at ortho and para position. Hence, the electrophile (electron deficient species) attacks on ortho and para position.