3-Chlorophenyl magnesium bromide on reaction with dry ice followed by acidification in mineral acid gives _________(a) 3-Chlorophenol(b) 3-Chlorophenylethanoic acid(c) 3-Chlorobenzaldehyde(d) 3-Chlorobenzoic acidI had been asked this question during an interview.This interesting question is from Methods of Carboxylic Acids Preparation topic in chapter Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

3-Chlorophenyl magnesium bromide on reaction with dry ice followed by

1.	3-Chlorophenyl magnesium bromide on reaction with dry ice followed by acidification in mineral acid gives _________(a) 3-Chlorophenol(b) 3-Chlorophenylethanoic acid(c) 3-Chlorobenzaldehyde(d) 3-Chlorobenzoic acidI had been asked this question during an interview.This interesting question is from Methods of Carboxylic Acids Preparation topic in chapter Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12
Answer» CORRECT choice is (d) 3-Chlorobenzoic acid To explain I would say: The MgBr group of 3-Chlorophenyl magnesium BROMIDE (Grignard reagent) will be substituted by COOH group in the above reaction, to GIVE a HALOGEN substituted aromatic carboxylic acid.

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