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Chemistry
The metal salts formed during softening of hardwater using Clark's method are :
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Q. The metal salts formed during softening of hardwater using Clark's method are :
JEE Main
JEE Main 2022
Hydrogen
A
$Ca ( OH )_2$ and $Mg ( OH )_2$
B
$CaCO _3$ and $Mg ( OH )_2$
C
$Ca ( OH )_2$ and $MgCO _3$
D
$CaCO _3$ and $MgCO _3$
Solution:
Clark's Method Reaction
$Ca \left( HCO _3\right)_2+ Ca ( OH )_2 \rightarrow 2 CaCO _3+2 H _2 O $
$Mg \left( HCO _3\right)_2+2 Ca ( OH )_2 \rightarrow 2 CaCO _3+ Mg ( OH )_2+2 H _2 O$