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What is the reason for keeping toothpaste mildly basic?

Answer and explanation

Correct answer: To neutralise acids formed in the mouth

The governing concept is acid–base neutralisation in dental care. Oral bacteria can convert sugars into acids, lowering the pH around tooth enamel and encouraging demineralisation. Mildly basic substances in toothpaste help neutralise some of these acids and support a safer oral pH. Thus option A is correct. The other choices would damage teeth, introduce a harmful gas, or worsen the conditions that support decay.

Related tags

ToothpasteBasicNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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