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Is Matter Aroun...

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  • Question 1
    1 / -0

    Fractional distillation can be used to separate components of air by:

  • Question 2
    1 / -0

    The first step in fractional distillation relies on :

  • Question 3
    1 / -0

    Crystals of pure copper sulphate are separated from the solution by :

  • Question 4
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    Which of the following is a compound?

  • Question 5
    1 / -0

    Common salt can be purified by a process of :

  • Question 6
    1 / -0

    Salt, sugar, and many other substances dissolve in water to form:

  • Question 7
    1 / -0

    Crystallization is a process of :

  • Question 8
    1 / -0

    The process of _________ is used to separate the component from a solid-solid mixture which _________ on heating and the other component being non-volatile.

  • Question 9
    1 / -0

    Energy is given off or absorbed in case of:

  • Question 10
    1 / -0

    Copper sulphate dissolved in water can be recovered as solid by:

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