Question

When we put burning candle near the mouth of test tube consisting of sulfuric acid &

pieces of magnesium metal, why does it explode?​

Answer 1

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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