A student takes two test tubes marked A and B containing and respectively. He adds
acetic acid to the test tubes one by one and every time he immediately brings a lighted matchstick near to
the mouth of the test tube. In one of the case, he observed that the matchstick extinguishes. Identify the
case and give reason why it happen
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because of hydrogen gas
acetic acid is CH3COOH,oxygen is a necessity for burning and acetic acids melting point is 16.6 degree Celsius hence releases hydrogen and carbon with oxygen carbon is dense than oxygen and hence the match stick extingushes
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