Explain Phlogiston Theory and state if it is true or not.
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1-"Phlogiston theory states that a substance undergoing combustion mainly contains a mysterious matter called phlogiston and some calx . When a substance burns phlogiston goes into the atmosphere and some calx (also known as dephlogisticated substance ) is left behind as an ash"
eg- when candle burns in a sealed container the air inside becomes saturated with phlogiston and cannot accomodate additional phlogiston.
common air that could hold no more phlogiston is known as "phlogisticated air"
2-this theory was ruled out because Antonie Lavoisier proved that during burning, a component of air is used in chemical reaction which was named as oxygen i.e acid forming
eg- when candle burns in a sealed container the air inside becomes saturated with phlogiston and cannot accomodate additional phlogiston.
common air that could hold no more phlogiston is known as "phlogisticated air"
2-this theory was ruled out because Antonie Lavoisier proved that during burning, a component of air is used in chemical reaction which was named as oxygen i.e acid forming
chaitu1305:
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