Saved Bookmarks
| 1. |
Explain synthesis resin method for removing permanent hardness of water |
| Answer» Synthetic resins method is a method used for removing permanent hardness of water. In this method ion exchange resins (RSO3H) is changed to RNa by treating it with NaCl. Then, RNa exchanges Na+ ions with Ca2+ and Mg2+ \xa0ions present in hard water and as a result, hard water is softened.2RNa (s) + Mg2+(aq) → R2M(s) + 2 Na+(aq) | |