By an experiment show that one fifth part of air is oxygen

1.	By an experiment show that one fifth part of air is oxygen
Answer» ANSWER: Take a lighted candle and place it carefully at the centre of the trough. Now take a glass tumbler and use a marker pen to MARK FIVE equal PORTIONS on the tumbler. INVERT this tumbler over the burning candle. Observation - The candle burns for some time and is then extinguished.

Answer»

Take a lighted candle and place it carefully at the centre of the trough. Now take a glass tumbler and use a marker pen to MARK FIVE equal PORTIONS on the tumbler. INVERT this tumbler over the burning candle. Observation - The candle burns for some time and is then extinguished.

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By an experiment show that one fifth part of air is oxygen​

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By an experiment show that one fifth part of air is oxygen