when we put a burning candle near the mouth of test tube consisting of the sulphuric acid and piece of magnesium metal why does it explode
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it doesn't explode... it makes a pop sound because of the hydrogen gas evolved
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in this reaction of Mg and H2SO4 , H2 is evolved . when we put a burning candle near the testube H2 burn with blue fire and it go out after that .
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