Question
Is air essential for combustion? Explain with the help of an activity.
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Answer
Take a candle, light it and fix it on a table. Allow the candle to burn steadily. Now, carefully cover the burning candle with a glass jar. We will observe that after some time, the flame flickers and eventually goes out. This occurs because the oxygen inside the jar is consumed by the burning candle, and without a continuous supply of oxygen from the air, combustion cannot be sustained. This experiment shows that air, specifically oxygen, is essential for combustion.
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