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| Q. |
Sodium selective electrode provides a good response in measurement when the pH is above which of the following values? |
| A. | 2 |
| B. | 3 |
| C. | 5 |
| D. | 10 |
| Answer» D. 10 | |
| Explanation: Sodium selective electrode provides a good response in measurement when the pH of the solution is above 10. Hence, the buffer solution is used. | |
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