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  • Question 1
    4 / -1

    The smelting of iron in a blast furnace involves all the following processes except :

  • Question 2
    4 / -1

    When a metal is to be extracted from its ore if the gangue associated with the ore is silica , then

  • Question 3
    4 / -1

    In metallurgical processes the flux used for removing acidic impurities is

  • Question 4
    4 / -1

    Roasting of copper pyrite ores is for which of the following purpose?

  • Question 5
    4 / -1

    In the modern blast furnaces, the charge consists of a mixture of :

  • Question 6
    4 / -1

    Flux is used to remove:

  • Question 7
    4 / -1

    Roasting is done in

  • Question 8
    4 / -1

    Refractory metals are used in construction of furnaces because

  • Question 9
    4 / -1

    Function of the flux added during smelting is

  • Question 10
    4 / -1

    Alumino-thermic process is used for the extraction of metals whose oxides are :

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