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General Princip...

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  • Question 1
    1 / -0

    The ore that is concentrated by froth flotation process is:

  • Question 2
    1 / -0

    The function of fractionating column is:

  • Question 3
    1 / -0

    Distillation under reduced pressure is used to purify liquids which:

  • Question 4
    1 / -0

    For the reaction of FeO at the temperature corresponding to point D, which of the following statement is correct?

  • Question 5
    1 / -0

    Pyrolusite is a/an :

  • Question 6
    1 / -0

    Cassiterite is an ore of :

  • Question 7
    1 / -0

    $$ACl_2 +BCl_2 \longrightarrow ACl_4 +B \downarrow$$
    (Excess)

    $$BO\xrightarrow [  ]{ Heat } B+\dfrac12{ O }_{ 2 }$$
    ($$A$$ and $$B$$ are metals.)

    Their ore of $$B$$ is :

  • Question 8
    1 / -0

    Consider the following statements :
    Roasting is carried out to:
    1. convert sulphide into oxide
    2. melt the ore
    3. remove moisture, water of hydration and expel organic matter
    4. remove sulphur and arsenic in the form of volatile oxides
    Out of these statements:

  • Question 9
    1 / -0

    In Hall's process, the ore is mixed with

  • Question 10
    1 / -0

    Which of the following elements occurs in native state?

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