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Carbonyl Compounds and Carboxylic Acids — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryCarbonyl Compounds and Carboxylic Acids2 Marks
Question
Why HCOOH does not give Hell - Voihard Zelinsky reaction but $CH _3 COOH$ does?
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Answer

$CH _3 COOH$ contains $\alpha$ - hydrogen atom and hence gives HVZ reaction but HCOOH does not contain an $\alpha-$ hydrogen atom and hence does not give HVZ reaction.

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