Washing soda is mainly used for what purpose?
Answer and explanation
Correct answer: Cleaning
Washing soda is sodium carbonate decahydrate, Na₂CO₃·10H₂O, and is a basic salt. Its alkaline nature helps remove grease and dirt, so it is widely used as a cleaning agent. It also softens hard water by removing calcium and magnesium ions. Making food sour, increasing stomach acid, and damaging teeth are not its proper uses; therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Cleaning
Why is this the correct answer?
Washing soda is sodium carbonate decahydrate, Na₂CO₃·10H₂O, and is a basic salt. Its alkaline nature helps remove grease and dirt, so it is widely used as a cleaning agent. It also softens hard water by removing calcium and magnesium ions. Making food sour, increasing stomach acid, and damaging teeth are not its proper uses; 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.
