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Alcohols, Phenols And Ethers

Question
CBSEENCH12011270

Which one is most reactive towards electrophilic reagent?

Solution

A.

Electron withdrawing substituent deactivates the benzene nucleus towards electrophilic substitution while electron releasing substituent activates the ring towards electrophilic substitution.
Among the given -OH has the higher electron donating tendency and thus, activates the ring more towards electrophilic substitution. Hence

is more reactive towards electrophilic reagents.