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Railways General Science & Technology Man Made Materials Sample Paper Man-Made Materials-I Sample Test Paper-23

  • question_answer
    Ordinary glass is

    A)  Sodium silicate

    B)  Borosilicate

    C)  Sodium and calcium silicate

    D)  None of the above

    Correct Answer: C

    Solution :

    [c] Ordinary glass is a mixture of sodium and calcium silicate.


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