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:

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Explanation:

- 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.

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Answer 2

Explanation:

Acid + metal-> salt and hydrogen gas

Here hydrogen gas is liberated

Hydrogen burns with pop sound

This is also called as pop sound test for hydrogen

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