

MCQOPTIONS
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1. |
_ Anion exchanger is regenerated usually with$? |
A. | NaOH |
B. | H‚ÇÇSO‚ÇÑ |
C. | Hydrazine |
D. | Alum solution |
Answer» B. H‚Äö√á√áSO‚Äö√á√ë | |