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Chemistry Test ...

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  • Question 1
    4 / -1

    Assertion (A): Noble gases have very low boiling points.

    Reason (R): All noble gases have general electronic configuration of ns2 np6 (except He)

  • Question 2
    4 / -1

    Only Iodine forms Hepta-fluoride IF7, but Chlorine and Bromine give Penta-fluorides. The reason for this is :

  • Question 3
    4 / -1

    Lead oxide (PbO) can be dissolved in

  • Question 4
    4 / -1

    HNO3 acts as

  • Question 5
    4 / -1

    Zinc metal when treated with 6% HNO3, 20% HNO3 & 80% HNO3 6% gives respectively

  • Question 6
    4 / -1

    An example of covalent solid is

  • Question 7
    4 / -1

    The dissolution of Al(OH)3 by a solution of NaOH results in the formation of which of the following?

  • Question 8
    4 / -1

    Aqueous solution of borax acts as a buffer because :

  • Question 9
    4 / -1

    Which of the following on heating produces NO2?

  • Question 10
    4 / -1

    Which element is used in preparation of Pesticides?

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