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Metals and Non-...

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  • Question 1
    1 / -0

    Pyrolusite is an ore of:

  • Question 2
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    The following metals exist in their native state:

  • Question 3
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    2Al+Fe2O3→2Fe+Al2O3+Heat. This reaction is an example of:

  • Question 4
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    Which process is used for the enrichment of oxide ores?

  • Question 5
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    Which of the following alloy is used for joining metals for electrical work?

  • Question 6
    1 / -0

    Copper sulphate (CuSO4) is:

  • Question 7
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    Galvanisation process involves elements zinc and iron. Which of the two metals is sacrificing its life to save the life of the other?

  • Question 8
    1 / -0

    Iron pillar at Delhi is made up of:

  • Question 9
    1 / -0

    “Ringing of bell in the temple” is associated with which property of metal:

  • Question 10
    1 / -0

    The melting point of NaCl is:

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