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| Q. |
The hardness in the ion exchange process is reduced to |
| A. | 0-1ppm |
| B. | 0-2ppm |
| C. | 0-3ppm |
| D. | 0-4ppm |
| Answer» B. 0-2ppm | |
| Explanation: the hardness of the ion exchange process is reduced to 0 to 2ppm. it | |
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