MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the functional groups are not present in cation exchangers? |
| A. | SO<sub>3</sub><sup> </sup> |
| B. | OPO<sub>3</sub><sup> </sup> |
| C. | NR<sub>3</sub><sup>+</sup> |
| D. | COO<sup> </sup> |
| Answer» D. COO<sup> </sup> | |