MCQ
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.
  • Water vapour is a product of combustion.

Answer

Correct option: D.
Water vapour is a product of combustion.
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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