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Which substance is likely to feel soapy and be basic in nature?

Answer and explanation

Correct answer: Sodium hydroxide solution

The governing concept is the characteristic behaviour of bases. Aqueous bases may feel slippery or soapy because they interact with oils on the skin, but direct contact is unsafe. Sodium hydroxide solution is a strong base, so option C is correct. Vinegar, tamarind juice, and lemon juice contain acids and are therefore plausible acidic distractors, not the expected basic substance.

Related tags

Basic-SubstancesSodium-HydroxideAcid-Base-PropertiesSafetyAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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