Question

State the the activity to show that air is necessary for combustion or burning..​

Answer 1

Answer:

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Light a candle with a burning matchstick and fix it on a table. We will see that this candle keeps on burning. This and covered candle burning because it is getting continuous supply of fresh air from the surroundings.Let us now cover the Burning candle with an invented gas jar. We will see that the candle stops burning after sometime. In other words, the candle gets extinguished. The candle stops burning or gets extinguished because the supply of fresh air to the burning candle is cut off by the gas jar cover. Since no fresh air is available to the burning candle it stops burning. This observation shows that air is necessary for combustion to take place.

See the attachment to understand in a better way..

${\huge{\blue{\texttt{Thank\:You!}}}}$

Answer 2

Answer:

Hey..! ☺

Activity: Take a candle and fix it on a table. The candle is lighted. The candle will continue to burn due to continuously available fresh air providing the required oxygen for combustion.

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