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Manipal MET2020ChemistryCarboxylic Acid Derivatives

The reagent which distinguishes formic acid and acetic acid is

Options

  1. A2, 4-dinitrophenyl hydrazine
  2. BHgCl ₂
  3. CC ₂ H ₅ ONa
  4. DHg ₂ Cl ₂

Correct answer

B. HgCl ₂

Step-by-step solution

HgCl ₂ distinguishes formic acid and acetic acid. Formic acid produces a white precipitate with HgCl ₂ solution. Acetic acid does not give this test.

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