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Which of the following cannot be a catalyst in the electrophilic substitution of arenes?

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in Chemistry – Class 12 by (188k points)
Which of the following cannot be a catalyst in the electrophilic substitution of arenes?

(a) FeCl3

(b) FeBr3

(c) NH3

(d) AlCl3

I had been asked this question in an internship interview.

I'm obligated to ask this question of Preparation of Haloarenes in division Haloalkanes and Haloarenes of Chemistry – Class 12

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The correct option is (c) NH3

The best I can explain: The electrophilic substitution of arenes requires the presence of a Lewis acid catalyst which acts as a halogen carrier. NH3 is a Lewis base.

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