Why is a mild acid mixed with baking soda in baking powder?
Answer and explanation
Correct answer: So that carbon dioxide is produced in a controlled way
Baking powder contains baking soda and a mild edible acid. When the mixture becomes wet and is heated, the acid reacts with sodium hydrogen carbonate and produces carbon dioxide. The gas forms bubbles that make baked food soft and spongy; the acid also helps prevent an unpleasant alkaline taste. Thus option A is correct. The other choices contradict the reaction because gas is formed and baking soda does not become a metal.
Frequently asked questions
What is the correct answer to this question?
So that carbon dioxide is produced in a controlled way
Why is this the correct answer?
Baking powder contains baking soda and a mild edible acid. When the mixture becomes wet and is heated, the acid reacts with sodium hydrogen carbonate and produces carbon dioxide. The gas forms bubbles that make baked food soft and spongy; the acid also helps prevent an unpleasant alkaline taste. Thus option A is correct. The other choices contradict the reaction because gas is formed and baking soda does not become a metal.
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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