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| 1. |
What is meant by demineralised water? How is it obatined |
| Answer» Solution :Water free from cation `(Ca^(2+),MG^(2+)etc)` and ANIONS `(Cl^(-),SO_(4)^(2-),HCO_(3)^(-)etc).` responsible for hardness is known as de-ionised or demieralised water. It is formed by PASSING water SPECIALLY water repeatedly through cation and ANION exhanges. For more detail, consult section 9.10. | |