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Hydrogen — CHEMISTRY STD 8 — Question

ICSE BoardEnglish MediumSTD 8CHEMISTRYHydrogen2 Marks
Question
Give a test to differentiate between two gas jars $–$ one containing pure hydrogen and the other hydrogen-air mixture.
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Answer

When a burning splinter is brought near the gas jar containing, pure $H_2$ bums with pale blue flame quietly. $H_2+$ Oxygen mixture bums with explosion.

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