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P - Block Eleme...

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  • Question 1
    4 / -1

    The reaction of P4 with aqueous NaOH gives

  • Question 2
    4 / -1

    Which element is used in the preparation of pesticides ?

  • Question 3
    4 / -1

    Reaction of PCl3 and PhMgBr would give

  • Question 4
    4 / -1

    The most stable hydride is

  • Question 5
    4 / -1

    Which of the element of nitrogen family produce maximum number of oxyacids ?

  • Question 6
    4 / -1

    H3 PO3 has.............. non-ionisable P—H bonds.

  • Question 7
    4 / -1

    Which of the following(s) when heated give nitrogen gas ?

  • Question 8
    4 / -1

    The catalyst used in the manufacture of ammonia is

  • Question 9
    4 / -1

    Which is tribasic acid ?

  • Question 10
    4 / -1

    Which one of the following pentafluorides cannot be formed ?

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