Which of the following cannot be a catalyst in the electrophilic subst – McqOptions

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1.	Which of the following cannot be a catalyst in the electrophilic substitution of arenes?
A.	FeCl<sub>3</sub>
B.	FeBr<sub>3</sub>
C.	NH<sub>3</sub>
D.	AlCl<sub>3</sub>
Answer» D. AlCl<sub>3</sub>

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