Question

when we put burning candle near the mouth of test tube consisting of sulfuric acid and 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.

Answer 2

Answer:

Reaction of Sulphric acid and magnesium meatal as-

Mg+HTSO4MGSO4+H2

Hydrogen gas is involved from test tube in this reaction .

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