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COMEDK2017Chemistryp Block Elements (Group 15, 16, 17 & 18)

Excess of PCl ₅ reacts with con(c) H ₂ SO ₄ giving

Options

  1. Achlorosulphonic acid
  2. Bthionyl chloride
  3. Csulphuryl chloride
  4. Dsulphurous acid

Correct answer

B. thionyl chloride

Step-by-step solution

Excess of PCl ₅ reacts with conc. H ₂ SO ₄ to gives thionyl chloride ( SO ₂ Cl ₂ ) , phosphorus oxychloride ( POCl ₃ ) and HCl. H ₂ SO ₄+2 PCl ₅ SO ₂ Cl ₂+2 POCl ₃+2 HCl

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