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P - Block Eleme...

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  • Question 1
    4 / -1

    Which of the following is amphoteric ?

  • Question 2
    4 / -1

    Group 15 of the periodic table consists of the elements N, P, As, Sb and Bi. On passing from N to Bi, the oxides of the elements of general formula M2O3 become

  • Question 3
    4 / -1

    NH3 has a much higher b.p than PH3 because

  • Question 4
    4 / -1

    The most acidic of the following compounds is

  • Question 5
    4 / -1

    In NH3 and PH3 the common is

  • Question 6
    4 / -1

    Among the trihalides of nitrogen which one is most basic?

  • Question 7
    4 / -1

  • Question 8
    4 / -1

    Which of the following is the correct statement for PH3?

  • Question 9
    4 / -1

    The equivalent weight of phosphoric acid (H3PO4) in the reaction
    NaOH + H3PO4 → NaH2PO4 + H2O is

  • Question 10
    4 / -1

    What is hybridization of P in PCl5 ?

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