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MHT CET Medical202624 April 2026Evening ShiftChemistryHydrocarbonsActual

Which of the following reagent is NOT required for the conversion of propyne to acetone?

Options

  1. AWater
  2. BZinc dust
  3. CH ₂ SO ₄
  4. DHgSO ₄

Correct answer

B. Zinc dust

Step-by-step solution

The conversion of propyne to acetone is achieved by the hydration of an alkyne (Kucherov reaction). The reagents used for this reaction are water, dilute H ₂ SO ₄ , and HgSO ₄ . CH ₃- C CH + H ₂ O HgSO ₄, H ₂ SO ₄ [ CH ₃- C(OH) = CH ₂] CH ₃- CO - CH ₃ Zinc dust is not required for this conversion. It is typically used in reactions like reductive ozonolysis or dehalogenation. Answer: Zinc dust

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