Question

The metal salts formed during softening of hard water using Clark's method are ______.

विकल्प

• Ca(OH)₂ and Mg(OH)₂

• CaCO₃ and Mg(OH)₂

• Ca(OH)₂ and MgCO₃

• CaCO₃ and MgCO₃

Answer 1

The metal salts formed during softening of hard water using Clark's method are CaCO₃ and Mg(OH)₂.

Explanation:

Clark's Method Reaction:

\[\ce{Ca(HCO3)2 + Ca(OH)2 -> 2CaCO3 + 2H2O}\]

\[\ce{Mg(HCO3)2 + 2Ca(OH)2 -> 2CaCO3 + Mg(OH)2 + 2H2O}\]