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  • Anion exchanger is used to Option: 1 remove anions like <img alt="Cl^- , HCO_3^- , SO_{4}^{2-}" src="/latex-image/?Cl%5E-%20%2C%20HCO_

Anion exchanger is used to 

Option: 1

remove anions like Cl^- , HCO_3^- , SO_{4}^{2-}


Option: 2

neutralize the H^+ released by the cation exchanger


Option: 3

remove cations like Ca^{2+}


Option: 4

both 1 and 2 


Answers (1)

best_answer

As we have learned

Anion exchanger resins have basic group such as -OH, NH_{2} and are often represented as resin-OH or  resin-NH3OH

The reactions involved are 

SO_{4}^{2-}+2\ resin-OH \rightleftharpoons resin_{2}-SO_{4}+ 2OH^-

RNH_3^{\oplus}OH^{\ominus} + X^{\ominus }\rightleftharpoons RNH_3 ^\oplus X^\ominus + OH^ \ominus

OH^ \ominus is exchanged for X^\ominus and it also neutralizes the H^+ ions already in the solution due to the cation exchange resin

H^+ + OH^- \rightleftharpoons H_2O

Therefore, option(4) is correct.

Posted by

Kuldeep Maurya

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