InterviewSolution
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InterviewSolution
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Softening of hard water is done using sodium aluminium silicate (zeolite) . This causesA. Adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water replacing `Na^(o+)` ions.B. Adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water replacing `Al^(3+)` ions.C. Both (a) and (b) are trueD. None is true |
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Answer» Correct Answer - A Hardness of water is due to carbonate or sulphate of `Ca^(2+)` and `Mg^(2+)` inos. When sodium aluminium silicate is added `Na^(o+)` replaces `Ca^(2+)` and `Mg^(2+)` by adsorption, and hence water becomes soft. |
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