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Why is a mild edible acid mixed with baking soda in baking powder?

Answer and explanation

Correct answer: To produce carbon dioxide from baking soda

Baking powder contains baking soda, sodium hydrogen carbonate, together with a mild edible acid such as tartaric acid. When moistened and heated, the acid reacts with NaHCO₃ and produces carbon dioxide. The gas bubbles expand through the mixture and make cakes or bread light and spongy. Therefore option A is correct. The acid is not added to form a metal, darken food, or prevent gas formation; B, C, and D contradict the purpose of baking powder.

Related tags

ScienceClass 10Acids Bases SaltsBaking PowderCarbon DioxideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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