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Metals and Non-...

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  • Question 1
    1 / -0

    The Iron pillar near the Qutub Minar in Delhi is prevented from rusting because of:

  • Question 2
    1 / -0

    The ratio of HCl and HNO3 in Aqua Regia is:

  • Question 3
    1 / -0

    The group of metals which do not react with oxygen:

  • Question 4
    1 / -0

    Which one of the following is not a method for enrichment of an ore?

  • Question 5
    1 / -0

    Roasting is a method of heating ore:

  • Question 6
    1 / -0

    Which of the following is incorrect about H2SO4?

  • Question 7
    1 / -0

    Magnesium imparts:

  • Question 8
    1 / -0

    Which of the following is not a silvery white metal?

  • Question 9
    1 / -0

    The process of extracting a metal from its ore is called:

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