How will you show that air or oxygen is necessary for burning?
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Answer:
we can prove it by doing an activity
activity:
take a candle and fixed on a table..The candle is lighted...the candle will continue to burn due to continously available fresh air providing the required oxygen for combustion....
Now cover the burning candle by putting an inverted gas jar over it..after a short time the candle stops burning and and gets extinguished...
this proves that air is necessary for combustion of substances....
hope it helps you....have a great day...
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