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P - Block Eleme...

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  • Question 1
    4 / -1

    Noble gases are adsorbed by

  • Question 2
    4 / -1

    In clathrates of xenon with water, the nature of bonding between xenon and water molecule is

  • Question 3
    4 / -1

    In Fischer-Ringe's method of separation of noble gas mixture from air,.......... is used.

  • Question 4
    4 / -1

    White phosphorus reacts with caustic soda. The products are PH3 and NaH2PO2.This reaction is an example of

  • Question 5
    4 / -1

    Which of the following fluorides does not exist ?

  • Question 6
    4 / -1

    Which of the following elements is most metallic.

  • Question 7
    4 / -1

    The electronegativity of the following elements increases in the order

  • Question 8
    4 / -1

    Which one of the following is pyrophosphoric acid ?

  • Question 9
    4 / -1

    Which one of the following compounds does not exist?

  • Question 10
    4 / -1

    Each of the following is true of white and red phosphorus except that they

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