

MCQOPTIONS
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1. |
In zeolite process, only small amount of ________ ions can be removed. |
A. | Mn<sup>++</sup> |
B. | Fe<sup>++</sup> |
C. | Both Fe<sup>++</sup> and Mn<sup>++</sup> |
D. | Neither Fe<sup>++</sup> nor Mn<sup>++</sup> |
Answer» D. Neither Fe<sup>++</sup> nor Mn<sup>++</sup> | |