when matchstick is brought near the hydrogen gas it burns with pop sound . why ???
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Explanation:
as it reacts with oxygen and produce small explosions
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When a matchstick is brought near the mouth of the test tube in which a metal has reacted with sulphuric acid, the matchstick produces a pop-sound nd stops burning. this is due to evolution of hydrogen gas after the reaction. THE POP SOIND MADE IS DUE TO THE EVOLUTION OF HYDROGEN GAS, THEREBY, BURNING OUT THE FLAME.
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