A) \[-N{{H}_{2}}\]
B) \[-OH\]
C) \[-X\] (halogens)
D) \[-X\](alkyl groups)
Correct Answer: C
Solution :
\[-N{{H}_{2}},-OH\] and \[-R\] (alkyl groups) all are o/p-directing and they activates the benzene ring -X (halogens) are however o/p-directing but deactivate the benzene ring by withdrawing electrons from the ring due to -I effect.
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