Baking powder reacts little in a dry container but produces gas in moist dough. What is the reason?
Answer and explanation
Correct answer: Moisture allows baking soda and acidic substance to react
Baking powder contains sodium hydrogen carbonate and a mild edible acid, often with a dry filler. In a dry container, the reactants remain largely separate and their reaction is very slow. When water is present in moist dough, the acid and bicarbonate dissolve and react, producing carbon dioxide. The gas bubbles expand during heating and make the dough rise. Thus option A is correct.
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What is the correct answer to this question?
Moisture allows baking soda and acidic substance to react
Why is this the correct answer?
Baking powder contains sodium hydrogen carbonate and a mild edible acid, often with a dry filler. In a dry container, the reactants remain largely separate and their reaction is very slow. When water is present in moist dough, the acid and bicarbonate dissolve and react, producing carbon dioxide. The gas bubbles expand during heating and make the dough rise. Thus option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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