Chemistry
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of:
- oxygen gas
- hydrogen gas
- nitrogen gas
- water vapour
Phy & Chem Changes
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Answer
hydrogen gas
Reason — When a lighted match stick is brought near the mouth of the jar containing hydrogen gas a pop sound is heard and the flame of the match stick gets extinguished.
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