Deionized water is obtained by passing hard w | vedclass

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(D) Deionized water is obtained by passing hard water through a series of ion exchange resins. First,it passes through a cation exchange resin (which

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Both cationic and anionic exchanger one after the other

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(D) Deionized water is obtained by passing hard water through a series of ion exchange resins. First,it passes through a cation exchange resin (which removes $Ca^{2+}$,$Mg^{2+}$,etc.) and then through an anion exchange resin (which removes $Cl^-$,$SO_4^{2-}$,etc.). Thus,both cationic and anionic exchangers are used one after the other.

Deionized water is obtained by passing hard water through

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