Q. The method used to remove temporary hardness of water is :
A) Calgon's method
B) Clark's method
C) Ion-exchange method
D) Synthetic resins method
Explanation
[Solution] In Clark's method, slaked lime precipitates bicarbonates as $CaCO_3$ and $Mg(OH)_2$, removing temporary hardness. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.