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Is Matter Aroun...

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  • Question 1
    1 / -0

    Which of the following substances contains only one kind of atoms?

  • Question 2
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    In order to separate a mixture in good yield by crystallization, the solution must be

  • Question 3
    1 / -0

    Use the following information to answer the next question.

    Richard was studying the change of states of matter at different temperatures. While experimenting with dry ice, he noticed that dry ice changed its state directly from solid to vapour. He wrongly noted down the phenomenon as boiling of solid in his observation book.

    The correct word or phrase that describes the above phenomenon is

  • Question 4
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    A substance that cannot be broken down into other simpler substances by ordinary chemical processes is known as

  • Question 5
    1 / -0

    Use the following information to answer the next question.

    Solutions are _____i_____ mixtures of two or more substances whose distribution throughout the mixture is ____ii______.

    Which alternative completes the given statement?

  • Question 6
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    Compounds are substances made up of two or more elements combined in specific proportions. The elements that are present in sugar are

  • Question 7
    1 / -0

    Use the following information to answer the next question.

    An element is a substance that is made up of only one kind of atoms. It cannot be split into two or more simpler substances by chemical means.

    Which of the following substances is made up of only one kind of atoms?

  • Question 8
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    A compound is a pure substance that can be broken down into two or more different elements by chemical means. Which of the following substances contains different kind of elements?

  • Question 9
    1 / -0

    Use the following information to answer the next question.

    Element

    Compound

    Titanium

    Chalk

    Mercury

    Sugar

    Methane

    Ammonia

    Which substance is listed incorrectly in the given table?

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