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Chemistry
The temporary hardness of water due to calcium bicarbonate can be removed by adding
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Q. The temporary hardness of water due to calcium bicarbonate can be removed by adding
Hydrogen
A
$CaCO_3$
15%
B
$CaCl_2$
9%
C
$HCl$
5%
D
$Ca(OH)_2$
70%
Solution:
$Ca(HCO_3)_2 + Ca(OH)_2 \rightarrow \underset{\text{(Insoluble)}}{2CaCO_3} + 2H_2O$