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  5. Materials : Metals and Non-metals

8th Class Science Materials : Metals and Non-metals Question Bank Materials : Metals and Non-metals

  • question_answer
    Identify the true statement from the following.

    A)  Metals have fixed melting points whereas non-metals do not. 

    B)                         All metals are malleable.

    C)                         The hardest substance known is a non-metal.

    D)                         Tungsten is a bad conductor of heat and electricity.

    Correct Answer: C

    Solution :

    The hardest substance known is diamond. Diamond is an allotrope of carbon i.e., a non-metal.


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