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Why does baking powder not react vigorously in dry state even though it contains baking soda and an acidic substance?

Answer and explanation

Correct answer: Due to lack of water, ionic reaction does not occur easily

The governing concept is that ions must become mobile for the acid-carbonate reaction to proceed efficiently. In dry baking powder, the solid particles have limited contact and the ions are not freely solvated, so vigorous reaction and carbon dioxide release are suppressed. When water is added, the substances dissolve and react; heating can then accelerate gas formation. The ingredients are not identical, and carbon dioxide does not form continuously without reaction. Therefore option A is correct.

Related tags

Baking PowderBaking SodaMoistureAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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