Why does the presence of acid and baking soda together in baking powder make cake fluffy?
Answer and explanation
Correct answer: Because carbon dioxide gas is released
Baking powder contains sodium hydrogen carbonate and a mild edible acid. During mixing and heating, the acid reacts with sodium hydrogen carbonate and releases carbon dioxide: acid + NaHCO3 → salt + water + CO2. The gas expands and forms bubbles that remain in the batter, making the cake light and fluffy. Therefore option C is correct; the other gases are not produced.
Frequently asked questions
What is the correct answer to this question?
Because carbon dioxide gas is released
Why is this the correct answer?
Baking powder contains sodium hydrogen carbonate and a mild edible acid. During mixing and heating, the acid reacts with sodium hydrogen carbonate and releases carbon dioxide: acid + NaHCO3 → salt + water + CO2. The gas expands and forms bubbles that remain in the batter, making the cake light and fluffy. Therefore option C is correct; the other gases are not produced.
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.
