sblock Elements - Result Question 28

####38. The temporary hardness of water is due to calcium bicarbonate can be removed by adding

(a) CaCO3

(b) Ca(OH)2

(c) CaCl2

(d) HCl

(1979,1M)

Objective Questions II

(One or more than one correct option)

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Solution:

  1. Lime treatment remove bicarbonate hardness by forming insoluble CaCO3 as

Ca(HCO3)2+Ca(OH)22CaCO3+2H2O



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