Why does baking powder not react vigorously in dry state even though it contains baking soda and an acidic substance?
Answer and explanation
Correct answer: Due to lack of water, ionic reaction does not occur easily
The governing concept is that ions must become mobile for the acid-carbonate reaction to proceed efficiently. In dry baking powder, the solid particles have limited contact and the ions are not freely solvated, so vigorous reaction and carbon dioxide release are suppressed. When water is added, the substances dissolve and react; heating can then accelerate gas formation. The ingredients are not identical, and carbon dioxide does not form continuously without reaction. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Due to lack of water, ionic reaction does not occur easily
Why is this the correct answer?
The governing concept is that ions must become mobile for the acid-carbonate reaction to proceed efficiently. In dry baking powder, the solid particles have limited contact and the ions are not freely solvated, so vigorous reaction and carbon dioxide release are suppressed. When water is added, the substances dissolve and react; heating can then accelerate gas formation. The ingredients are not identical, and carbon dioxide does not form continuously without reaction. 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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
