Assertion (A): The Clark's method involves removal of permanent hardness. Reason (R ):The Clark's method involves the addition of slaked lime which results in the removal of bicarbonates as insoluble carbonates.

Assertion (A): The Clark's method involves removal of permanent hardne

1.	Assertion (A): The Clark's method involves removal of permanent hardness. Reason (R ):The Clark's method involves the addition of slaked lime which results in the removal of bicarbonates as insoluble carbonates.
Answer» Both (A) and (R ) are true and (R ) is the correct reason for (A). Both (A) and (R ) are true but (R ) is not the correct reason for (A) (A) is true but (R ) is false (A) is false but (R ) is true. Solution :Clark's METHOD is used to REMOVE temporary hardness. In this process slaked lime is added, which RESULTS in conversion of soluble bicarbonates into INSOLUBLE carbonates. On filtration soft water is obtained.