JEE Main & Advanced Chemistry The s-Block Elements Question Bank Critical Thinking

  • question_answer \[{{H}_{3}}P{{O}_{2}}\] is the formula for one of the phosphorus acid. Its name and basicity are respectively [CBSE PMT 1992; BHU 1999; KCET 1999]

    A) Phosphorus acid and two

    B) Hypophosphorus acid and two

    C) Hypophosphorus acid and one

    D) Hypophosphoric acid and two

    Correct Answer: C

    Solution :

    Name and basicity of \[{{H}_{3}}P{{O}_{2}}\] is hypophosphorus acid & one.

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