9.43. Choose the incorrect statement:
(a) Hard water is not suitable for laundry.
(b) Temporary hardness can be removed by boiling.
(c) Calgon is used for removing permanent hardness of water.
(d) Calgon forms precipitates with Ca2+ and Mg2+.
9.43. Choose the incorrect statement:
(a) Hard water is not suitable for laundry.
(b) Temporary hardness can be removed by boiling.
(c) Calgon is used for removing permanent hardness of water.
(d) Calgon forms precipitates with Ca2+ and Mg2+.
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1 Answer
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9.43. (d) Calgon forms precipitates with Ca2+ and Mg2+.
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