JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Water or hydride of oxygen

  • question_answer Which of the following will cause softening of hard water

    A) Passing it through cation exchange resin

    B) Passing it through anion exchange resin

    C) Passing it through sand

    D) Passing it through alumina

    Correct Answer: A

    Solution :

    In cation exchange resin \[M{{g}^{+2}}\] and \[C{{a}^{+2}}\] (cations) are replaced by \[N{{a}^{+}}\] ions.

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