When we put burning candle near the mouth of test tube consisting of sulfuric acid &
pieces of magnesium metal, why does it explode?
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Explanation:
The reaction of magnesium and sulfuric acid is are as follows:
Mg + H2SO4------> MgSO4 + H2 .
Hydrogen gas is evolved from testtube in given reaction.
This hydrogen gas burns explosively in presence of air creating sound like pop.
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