What is the main difference between baking soda and baking powder?
Answer and explanation
Correct answer: Baking powder contains baking soda along with a mild acid
Baking soda is mainly sodium hydrogen carbonate, a single chemical compound. Baking powder is a mixture containing baking soda and a mild dry acid, often with starch to keep it stable. When liquid and heat are supplied, the acid reacts with the hydrogen carbonate and releases carbon dioxide. Therefore A gives the real composition difference; the other statements confuse it with chlorine, common salt, or claim incorrectly that the two are identical.
Frequently asked questions
What is the correct answer to this question?
Baking powder contains baking soda along with a mild acid
Why is this the correct answer?
Baking soda is mainly sodium hydrogen carbonate, a single chemical compound. Baking powder is a mixture containing baking soda and a mild dry acid, often with starch to keep it stable. When liquid and heat are supplied, the acid reacts with the hydrogen carbonate and releases carbon dioxide. Therefore A gives the real composition difference; the other statements confuse it with chlorine, common salt, or claim incorrectly that the two are identical.
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.
