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Railways Sample Paper RRB (Group D) Sample Test Paper-2

  • question_answer
    Which of the following is chief source of Napthalene?

    A)  Mothballs         

    B)  Mothflakes

    C)  Tar Camphor               

    D)  Coal tar

    Correct Answer: D

    Solution :

    [d] Naphthalene is an organic compound with formula C 10H 8. It is the simplest polycyclic. Naphthalene is the most abundant single component of coal tar.


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