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Railways R.R.C. (Chennai) Solved Paper Held on 1st Shift 2-11-2014

  • question_answer
    The so-called fourth state of matter refers to?

    A) Mercury            

    B) LPG

    C) Dry ice             

    D) Plasma

    Correct Answer: D

    Solution :

    A plasma is an ionized gas and it is called the "fourth state of matter".


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