Aromatic HydrocarbonsMedium

Question

Which one is most reactive towards electrophilic reagent ?

Options

A.
B.
C.
D.

Solution

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 reagent.

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