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

  • question_answer
    A spoon is kept in contact with ice cubes for some time. Later, the same spoon was held over the flame of a small candle. The observation is shown in the figure.
    What do you infer from the given figure?
     

    A) Spoon is an inflammable substance.

    B) Burning of candle is a spontaneous process.

    C) Carbon dioxide is a product of combustion.

    D) Water vapour is a product of combustion.

    Correct Answer: D

    Solution :

    Water droplets are formed as a result of condensation of water vapours (product of combustion) on coming in contact with the cold surface of spoon.


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