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Why can aqueous solutions of non-metal oxides often turn blue litmus red?

Answer and explanation

Correct answer: They can form acidic substances in water

The governing concept is the acidic nature of many non-metal oxides in water. Oxides such as carbon dioxide and sulfur dioxide react or dissolve in water to produce acidic solutions, which provide hydrogen ions and turn blue litmus red. Therefore option A is correct. B is chemically unrelated, C reverses the usual behaviour, and D is too absolute because several non-metal oxides dissolve or react with water.

Related tags

Non-Metal OxidesAcidic OxideLitmusAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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