Softening of Hard Water
(i) The hard water is made to pass through a column packed with zeolite (sodium aluminium silicate)
(ii) Ca++, Mg++ ions which are responsible for hardness, get adsorbed on zeolite, exchanging sodium ions.
(iii) The exhausted zeolite is regenerated with 10% of sodium chloride solution.
NEET & AIIMS Exam Sample Papers
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