Haryana PMT Haryana PMT Solved Paper-2011

  • question_answer One mole of calcium phosphide with excess water gives

    A)  one mole of phosphine

    B)  two moles of phosphoric acid

    C)  two moles of phosphine

    D)  one mole of phosphorus pentoxide

    Correct Answer: C

    Solution :

                    One mole of calcium phosphide with excess water gives two moles of phosphine. \[C{{a}_{3}}{{P}_{2}}+6{{H}_{2}}O\xrightarrow{{}}2P{{H}_{3}}+3Ca{{(OH)}_{2}}\]

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