MDCAT Chemistry MCQ #5393

A chemist adds water to Phosphorus trichloride (PCl3). Which phosphorus-containing acid is formed through the resulting vigorous hydrolysis mechanism?

MDCAT Chemistry MCQ #5393

  1. Question 1

    Q1. A chemist adds water to Phosphorus trichloride (PCl3). Which phosphorus-containing acid is formed through the resulting vigorous hydrolysis mechanism?

    • A) Phosphoric acid
    • B) Phosphine gas
    • C) Hypophosphorous acid
    • D) Phosphorous acid

    Answer: Phosphorous acid

    Explanation: Hydrolysis of PCl3 yields Phosphorous acid (H3PO3); PCl5 is tempting as its hydrolysis produces Phosphoric acid (H3PO4) instead.