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Metallurgy Test...

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  • Question 1
    1 / -0

    Metals have __________ number of valence electrons.

  • Question 2
    1 / -0

    Duralumin is an alloy of:

  • Question 3
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    A substance which is added to the ore in order to remove impurities during smelting.

  • Question 4
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    _______ is the main ore used for the extraction of iron.

  • Question 5
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    All ores are minerals, while all minerals are not ores because:

  • Question 6
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    Elements in molten state, on mixing and the cooling from a homogeneous called alloy are:

  • Question 7
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    In electrolytic reduction of alumina the reaction of oxidation of anode by oxygen produces:

  • Question 8
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    Which one of the following is not true for metals?

  • Question 9
    1 / -0

    Bauxite is ______in nature.

  • Question 10
    1 / -0

    Red mud is a mixture of ____________ insoluble impurities.

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