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Q.

Friedel -Craft catalyst anhydrous ${AlCl}_{3}$ may be replaced by
(A) ${FeCl}_{3}$ (B) ${SnCl}_{4}$ (C) ${BF}_{3}$ (D) ${Cr}_{2} O_{3}$
the correct answer is

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a

A, B, C

b

A,B D

c

A,D,C

d

A,D

answer is A.

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Detailed Solution

All Lewis acids acts as catalysts in Friedel craft's reaction

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Friedel -Craft catalyst anhydrous AlCl3 may be replaced by(A) FeCl3 (B) SnCl4 (C) BF3 (D) Cr2O3 the correct answer is