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Question

Pooja fixed a candle at the bottom of the container holding water. After lighting the candle, she inverted a glass jar over it. What do you think she observed?


  1. The flame continued to burn, and water rose in the jar.
  2. The flame was put off, and black smoke got deposited on the sides of the jar.
  3. The flame continued to burn, and molten wax felt into the water.
  4. The flame was put off and water rose in the jar.


Solution

The correct option is D The flame was put off and water rose in the jar.
The flame of the candle will burn till there is oxygen available in the jar. After sometime, when all the oxygen is consumed, candle flame will go off. The water from the container will rise in the jar to occupy the space of the consumed oxygen gas.

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