If aromatic ring is substituted by more than one group then electrophilic aromatic substitution reaction take place according to more activating group. The group which donates electrons to aromatic ring knwn as activating group and which withdraw electrons from the ring is called electron withdrawing group. generally all lectron releasing groups activates benzene ring towards electrophilic substitution and electron withdrawing groups deactivates ring towards electrophilic substitutions.
Q. Find out major product of following reaction
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B.
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D.