NEET Chemistry The p-Block Elements (XII) Questions Solved

BOARD

What happens when

(i) PCl5 is heated?

(ii) H3PO3 is heated?

Write the reactions involved.

(i) On heating PCl5 decomposes into PCl3+Cl2

   PCl5+COPCl3+Cl2

(ii) Orthophosphorous acid on heating disproportionates to give orthophosphoric acid and phosphine.

  4H3PO3Orthophosphorous acid3H3PO4Orthophosphoric acid+PH3Phosphine

Difficulty Level:

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