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Railways General Science & Technology Nature of Matter Sample Paper Nature of Matter Sample Test Paper-13

  • question_answer
    A water molecule is made up of one oxygen and two hydrogen atoms. Why water is considered a pure substance?

    A)  Water can be broken down by physical means.

    B)  Water can be combined with other substances by physical means.

    C)  Each water molecule is identical.

    D)  Water molecules are made up of different types of atoms.

    Correct Answer: C

    Solution :

    [c] is correct because the particles that make up pure substances are identical throughout the substance.


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