When magnesium is burned with hydrochloric acid, a pop sound is heard when a glowing splint is brought near the beaker. It is because:

Hydrogen sulphide is released.

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Hydrogen gas is released.

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Magnesium oxide is decomposed.

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Chlorine gas is released.

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Solution

The correct option is B
Hydrogen gas is released.

When magnesium is burned with hydrochloric acid, a pop sound is heard when a glowing splint is brought near the beaker. It is because hydrogen gas is released along with the formation of magnesium chloride and hydrogen gas reignites the glowing splint and is followed by a pop sound.

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