6. How will you prove experimentally that products of the combustion of a candle are (a) carbon dioxide gas (b) water vapour?
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A candle is took and covered it with pitcher so that an air tight room is created. After some times,the candle dims and vanished but before the candle burning,the water level rises to almost 1/10 of the pitcher height. This experiment proves that combustion produces carbon monoxide and water.
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Answer:The water level rises to almost 1/10 of the pitcher height
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