HomeEveryday Science MCQsPermanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ? 1473. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?By Admin / September 17, 2025 A. Zeolites B. Sulphonides C. Lime D. Nitrates ✅ The correct answer is option A.
1. Which of the following does not pollute the air? Leave a Comment / Everyday Science MCQs / By Admin
2. Which of the following planets have the longest day? Leave a Comment / Everyday Science MCQs / By Admin