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Hydrogen gas is identified by which test?

Answer and explanation

Correct answer: A pop sound near a burning splint

Hydrogen is a combustible gas. When a sample of hydrogen is brought carefully near a burning splint, it ignites and produces a characteristic ‘pop’ sound because it reacts rapidly with oxygen. Therefore, option C is the correct identification test. Limewater turning milky indicates carbon dioxide, turmeric changing colour suggests a base, and pink phenolphthalein also indicates alkalinity rather than hydrogen.

Related tags

Hydrogen TestPop TestGas IdentificationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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