Q. Which chemical is used to remove hardness of water?

  • (A) Baking soda
  • (B) Washing soda
  • (C) Caustic soda
  • (D) Bleaching powder
✅ Correct Answer: (B) Washing soda
Explanation: Washing soda (sodium carbonate) reacts with calcium and magnesium ions to remove hardness from water.

Published by Sikhar Chaudhary ⭐ 6.79K Points at 06-Oct-2025 06:50 am in Chemistry

Explanation by: Sikhar Chaudhary
Washing soda (sodium carbonate) reacts with calcium and magnesium ions to remove hardness from water.

📝 Notes by Other Students/ Teachers

📊 Question Analytics

👁️
80
Total Visits
📽️
11 mo ago
Published
🎖️
Sikhar Chaudhary
Publisher
📈
80%
Success Rate