Science

9th

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Pure and Impure Substances | Is Matter around us Pure? | Assessment | English | Grade 9

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Pure substance is _________________ .

    made up of same type of atoms

    made up of same type of molecules

    Only 1

    Both 1 and 2

  • 2. Multiple Choice
    30 seconds
    1 pt

    On the basis of composition of matter, milk is considered to be _________ .

    a pure substance

    an impure substance

    an element

    none of the above

  • 3. Multiple Choice
    30 seconds
    1 pt

    Rocks, minerals, petroleum, LPG, bio gas are pure substances. State true or false?

    TRUE

    FALSE

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