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Violet colour of universal indicator indicates which type of solution?

Answer and explanation

Correct answer: Strongly basic solution

Universal-indicator colours are linked to the pH scale. Violet or purple occurs near the high-pH end, where hydroxide-ion concentration is relatively high and the solution shows strong basicity. Consequently, option C is correct. Acidic solutions have pH values below 7 and usually give yellow-to-red shades, while a neutral solution near pH 7 is green. A slightly acidic solution cannot normally produce the violet colour associated with strong alkalinity.

Related tags

Universal IndicatorStrong BaseHigh PhAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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