Softening of hard water is done using sodium aluminium silicate (zeolite) . This causesA. adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water relpacing `Na^(+)` ions.B. adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water relpacing `Al^(3+)` ions.C. both (A) and (B)D. none of these

Softening of hard water is done using sodium aluminium silicate (zeoli

1.	Softening of hard water is done using sodium aluminium silicate (zeolite) . This causesA. adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water relpacing `Na^(+)` ions.B. adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water relpacing `Al^(3+)` ions.C. both (A) and (B)D. none of these
Answer» Correct Answer - A Softening of hard water: Ion exchange resins used for softening of hard water is based upon selective and competive adsorption of ions on resins. `Na_(2)Z+Ca^(+2) rarr CaZ+2 Na^(+)` The organic polymers containing groups like`-COOH, -SO_(3)H` and `-NH_(2)` etc. possess the property of selective adsorption of ions from solution. These are quite usefuk in the softening of water.

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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 relpacing `Na^(+)` ions.B. adsorption of `Ca^(2+)` and `Mg^(2+)` ions of hard water relpacing `Al^(3+)` ions.C. both (A) and (B)D. none of these

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