HomeGeneral KnowledgePermanent hardness of water may be removed by the addition of 5954. Permanent hardness of water may be removed by the addition ofBy Admin / September 19, 2025 A. sodium carbonate B. alum C. potassium permanganate D. lime ✅ The correct answer is option A.
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