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A student says acids only turn blue litmus red and show no other chemical property. Which response is correct?

Answer and explanation

Correct answer: The statement is wrong because acids also react with metals, carbonates, and bases

The governing concept is that litmus is only one indicator of acidity, not the complete list of acid properties. Acids can react with active metals to release hydrogen, with carbonates to release carbon dioxide, and with bases in neutralisation reactions to form salt and water. Therefore option A correctly rejects the student’s incomplete claim. Options B and C contradict known reactions and ionisation, while D wrongly says acids are always bases.

Related tags

Acid PropertiesLitmusChemical ReactionsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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