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

Answer:

-the reaction of sulphuric acid and Magnesium metal is as follows:

Mg + H2SO4 → MgSO4 + H2

-Hydrogen gas is evolved from the test tube in this reaction.

- When we bring the candle near the mouth of the test tube, this hydrogen gas burns explosively in the presence of air with a pop sound.

Explanation:

Answer 2

Explanation:

hydrogen gas will be evolved by giving a pop sound when candle is bought near to mouth of test tube