Anion exchanger is regenerated usually with ____________________?
Correct answer: A. NaOH
- A. NaOH
- B. H2SO4
- C. Hydrazine
- D. Alum solution
Explanation
Anion-exchange resins exchange negative ions and are regenerated with hydroxide ions supplied by NaOH. H2SO4 is commonly used to regenerate cation exchangers, which is the usual source of confusion.
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