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Science

9th

grade

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Is matter Around us pure - 02

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20 questions

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  • 1. Multiple Choice
    30 seconds
    5 pts
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    Air is regarded as mixture because?

    It's pressure may vary.

    It's temperature may vary.

    Volume changes under different compositions.

    It's compositions may vary.

  • 2. Multiple Choice
    30 seconds
    5 pts
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    In which of the following constituents are present in the fixed ratio?

    Mixture.

    Compound.

    Solution.

    Colloid.

  • 3. Multiple Choice
    30 seconds
    5 pts
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    Brass is an example of?

    Homogeneous compound.

    Homogeneous mixture.

    Heterogeneous mixture.

    Heterogeneous compound.

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