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Question
The metal salts formed during softening of hard water using Clark's method are ______.
Options
Ca(OH)2 and Mg(OH)2
CaCO3 and Mg(OH)2
Ca(OH)2 and MgCO3
CaCO3 and MgCO3
MCQ
Fill in the Blanks
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Solution
The metal salts formed during softening of hard water using Clark's method are CaCO3 and Mg(OH)2.
Explanation:
Clark's Method Reaction:
\[\ce{Ca(HCO3)2 + Ca(OH)2 -> 2CaCO3 + 2H2O}\]
\[\ce{Mg(HCO3)2 + 2Ca(OH)2 -> 2CaCO3 + Mg(OH)2 + 2H2O}\]
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Water - Temporary Hardness of Water
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