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| Q. |
The pH value of concentrated sulphuric acid could be expected between |
| A. | 7 and 6 |
| B. | 6 and 5 |
| C. | 4 and 3 |
| D. | 3 and 1 |
| E. | 1 and 0 |
| Answer» E. 1 and 0 | |
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