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| Q. |
In which process of water softening, ion exchange phenomenon takes place? |
| A. | lime soda process |
| B. | zeolite process |
| C. | boiling |
| D. | demineralization process |
| Answer» B. zeolite process | |
| Explanation: in the zeolite process, calcium and magnesium are removed from hard water by ion exchange phenomenon. | |
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