Which of the following will cause softening o | vedclass

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(A) The correct option is $(A)$. Hardness of water is primarily due to the presence of $Ca^{2+}$ and $Mg^{2+}$ ions. In the cation exchange process,ha

Vedclass · Accepted Answer

Passing it through cation exchange resin

Vedclass · Answer

(A) The correct option is $(A)$. Hardness of water is primarily due to the presence of $Ca^{2+}$ and $Mg^{2+}$ ions. In the cation exchange process,hard water is passed through a cation exchange resin (containing $R-SO_3H$ or $R-COOH$ groups). The $Ca^{2+}$ and $Mg^{2+}$ ions are exchanged with $H^+$ or $Na^+$ ions present in the resin,thereby removing the hardness.

Which of the following will cause softening of hard water?

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