First slide

Hardness of water

Question

Temporary hardness is due to

Easy

A

CaCl₂
B

Mg(HCO₃)₂
C

MgSO₄
D

MgCl₂

Solution

Temporary hardness of water is due to the presence of Bicarbonates of Ca & Mg
i.e., Mg[HCO₃]₂ & Ca[HCO₃]₂

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