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Hydrogen gas is identified by what?

Answer and explanation

Correct answer: By a pop sound near a burning splint

Hydrogen is a combustible gas. When a small amount is brought into contact with a burning splint, it burns rapidly and produces a characteristic ‘pop’ sound, so option B is the identification test. Limewater turning milky indicates carbon dioxide. Turmeric and phenolphthalein are indicators of basic conditions, not specific tests for hydrogen gas. The test must be performed carefully because hydrogen-air mixtures can be explosive.

Related tags

HydrogenPop TestGas IdentificationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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