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BITSAT2010ChemistryHaloalkanes and HaloarenesActual

In which of the following conversions, phosphorus pentachloride is used as the reagent?

Options

  1. AH ₂ C = CH ₂ CH ₃ CH ₂ Cl
  2. BCH ₃ CH ₂ OH CH ₃ CH ₂ Cl
  3. CH ₃ C - O - CH ₃ CH ₃ Cl
  4. DCH CH CH ₂= CHCl

Correct answer

B. CH ₃ CH ₂ OH CH ₃ CH ₂ Cl

Step-by-step solution

When ethyl alcohol is treated with PCl ₅ , then ethyl chloride is formed. aligned CH ₃ CH ₂- OH &+ PCl ₅ _ & CH ₃ CH ₂- Cl + HCl + POCl ₃ aligned

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