Q.

What is the preferred regenerant in case of anion exchanger?

A. nacl
B. naoh
C. na2so4
D. na2co3
Answer» B. naoh
Explanation: the preffered regenerant in case of anion exchanger is naoh. regeneration is a process necessary to regenerate the resin. in this way the resin can be reused for the next demineralization process.
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