Which statement correctly differentiates the uses of baking soda and washing soda?
Answer and explanation
Correct answer: Baking soda raises food and washing soda softens water
The governing concept is the different composition and uses of two sodium salts. Baking soda, sodium hydrogen carbonate (NaHCO₃), releases carbon dioxide on heating or reacting with an acid; the gas makes dough and cakes rise. Washing soda, sodium carbonate decahydrate (Na₂CO₃·10H₂O), removes calcium and magnesium ions and is used to soften hard water. Thus option A is correct.
Frequently asked questions
What is the correct answer to this question?
Baking soda raises food and washing soda softens water
Why is this the correct answer?
The governing concept is the different composition and uses of two sodium salts. Baking soda, sodium hydrogen carbonate (NaHCO₃), releases carbon dioxide on heating or reacting with an acid; the gas makes dough and cakes rise. Washing soda, sodium carbonate decahydrate (Na₂CO₃·10H₂O), removes calcium and magnesium ions and is used to soften hard water. Thus 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.
