HomeGeneral KnowledgePermanent hardness of water can be removed by adding 7024. Permanent hardness of water can be removed by addingBy Admin / September 20, 2025 A. chlorine B. washing soda C. potassium permanganate D. bleaching powder ✅ The correct answer is option B.
1. In which field is the Dhanwantri Award given? Leave a Comment / Awards and Honours MCQs, General Knowledge / By Admin
2. Which of the following awards was conferred on Mrs. Kiran Bedi? Leave a Comment / Awards and Honours MCQs, General Knowledge / By Admin