8th Class Science Combustion and Flame Question Bank Combustion and Flame

  • question_answer 14) What does the blue zone in an L.P.G. flame indicate?

    A)  Unburnt vapours

    B)                         Partial decomposition

    C)                         Moderately hot

    D)                         Hottest zone of complete combustion

    Correct Answer: D

    Solution :

    The blue zone in L.P.G. flame indicates the hottest zone where complete combustion takes place.

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