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| 1. |
Calcium Hydroxide cannot be used to remove permanent hardness of water why? |
| Answer» Solution :`MgCl_2+Ca(OH)_2toMg(OH)_2+CaCl_2` REMOVAL of permanent hardness means (Mg &Ca) chlorides and sulphates are CONVERTED to insoluble CARBONATES but we can use `Ca(OH)_2` means formed calcium chlorides only does not form insoluble carbonates | |