MHT CET2007ChemistryCarboxylic Acid Derivatives

Corrosive sublimate ( HgCl ₂ ) can be used to distinguish between

Options

Aformic acid and acetic acid
Bacetaldehyde and butanone
Cformaldehyde and propanone
DAll of the above

Correct answer

A. formic acid and acetic acid

Step-by-step solution

Corrosive sublimate gives black ppt of calomel with formic acid but it does not react with acetic acid. 2 HCOOH +2 HgCl ₂ Hg ₂ Cl ₂+ CO ₂+ H ₂ O CH ₃ COOH + HgCl ₂ No reaction

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