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Benzoic acid reacts with ______ to give m-Bromobenzoic acid.

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in Chemistry – Class 12 by (188k points)
Benzoic acid reacts with ______ to give m-Bromobenzoic acid.

(a) Br2/light

(b) Br2-FeBr3

(c) NaBr

(d) PBr3/heat

The question was asked during an interview for a job.

My query is from Carboxylic Acids Chemical Reactions topic in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Best answer
Correct option is (b) Br2-FeBr3

To elaborate: Benzoic acid undergoes electrophilic substitution with bromine at the meta position in the presence of FeBr3 to form 3-bromobenzoic acid and hydrogen bromide as side product.

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