Why does food rise when baking soda reacts with an acid?
Answer and explanation
Correct answer: Carbon dioxide bubbles form
The governing concept is an acid–carbonate reaction that releases a gas. Baking soda is sodium hydrogen carbonate, NaHCO3. With an acid, it produces a salt, water and carbon dioxide; for example, NaHCO3 + H+ forms CO2 and H2O along with the salt. Carbon dioxide bubbles become trapped in the mixture, expanding it and making the food rise and become porous. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Carbon dioxide bubbles form
Why is this the correct answer?
The governing concept is an acid–carbonate reaction that releases a gas. Baking soda is sodium hydrogen carbonate, NaHCO3. With an acid, it produces a salt, water and carbon dioxide; for example, NaHCO3 + H+ forms CO2 and H2O along with the salt. Carbon dioxide bubbles become trapped in the mixture, expanding it and making the food rise and become porous. Therefore 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.
