• # question_answer The only o, p-directing group which is deactivating in nature is A) $-N{{H}_{2}}$ B) $-OH$ C) $-X$ (Halogens) D) $-R$ (Alkyl groups)

Correct Answer: C

Solution :

Electron accepting groups which make the substitution difficult are known or deactivating groups.                    o. p. directing groups are as follow : $-C{{H}_{3}},{{C}_{2}}{{H}_{5}}(-R),-N{{H}_{2}},-OH$, halogens $(Cl,\,Br,\,I)$.

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