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Railways R.R.C. (Ahmedabad) Solved Paper Held on 1st Shift 9-11-2014

  • question_answer
    In fireworks, the green flame is produced due to-

    A) Sodium            

    B) Barium

    C) Mercury            

    D) Potassium

    Correct Answer: B

    Solution :

    Barium compounds are added to fireworks to impart a Green colour.


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