Q. The metallic constituents of hard water are - (Solved)
1. Magnesium, Calcium and tin
2. Iron, tin and calcium
3. Calcium, magnesium and iron
4. Magnesium, tin and iron
- c. Calcium, magnesium and iron
1. Magnesium, Calcium and tin
2. Iron, tin and calcium
3. Calcium, magnesium and iron
4. Magnesium, tin and iron