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MHT CET Medical202626 April 2026Morning ShiftChemistryHaloalkanes and HaloarenesActual

Identify best method for preparation of Alkyl fluoride from following

Options

  1. AFinkelstein reaction
  2. BSwartz reaction
  3. CSandmeyer's reaction
  4. DWurtz reaction

Correct answer

B. Swartz reaction

Step-by-step solution

Swarts reaction is the best method for the preparation of alkyl fluorides. In this reaction, alkyl chlorides or bromides are heated in the presence of metallic fluorides such as AgF , Hg₂F₂ , CoF₂ , or SbF₃ to form alkyl fluorides. R-X + AgF R-F + AgX (where X = Cl, Br ) Finkelstein reaction is used for the preparation of alkyl iodides. Sandmeyer's reaction is used for the preparation of aryl halides. Wurtz reaction is used for the preparation of higher alkanes. Answer: Swartz reaction

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