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JEE Main Chemistry question

ChemistryOrganic Chemistry - Some Basic Principles and TechniquesJEE Main

Which acts as Lewis base in the reaction, BCl₃ + PH₃ → Cl₃B:PH₃?

Answer: (A)

Solution

PH₃ donates its lone pair to electron-deficient BCl₃.

Question ID VK-136175