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Why are baking soda and an edible acid both kept in baking powder?

Answer and explanation

Correct answer: To produce carbon dioxide in the presence of moisture and heat

The governing concept is an acid–base reaction that releases a gas. Baking soda, sodium hydrogen carbonate (NaHCO₃), reacts with the edible acid when moisture is present, and heating helps the reaction proceed: acid + NaHCO₃ → salt + water + CO₂. The carbon dioxide bubbles expand in the batter and make baked food rise and become porous. Therefore A is correct; chlorine, metal, and permanent acidity are not products or purposes of this mixture.

Related tags

Baking PowderBaking SodaCarbon DioxideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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