Which of the following statements are correct about Friedel-crafts reaction?
A
It is an aromatic electrophilic substitution reaction.
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B
The reaction intermediate is an ¯¯¯e deficient species.
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C
The reaction involves alkylation and acylation.
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D
A Lewis acid is used as a catalyst.
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Solution
The correct options are A It is an aromatic electrophilic substitution reaction. C The reaction involves alkylation and acylation. D A Lewis acid is used as a catalyst. Statement (b) is wrong because the intermediate is σ-complex which is a positive-charge complex, not ¯¯¯e deficient species.