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.
A
Both (A) and (R ) are true and (R ) is the correct reason for (A).
B
Both (A) and (R ) are true but (R ) is not the correct reason for (A)
C
(A) is true but (R ) is false
D
(A) is false but (R ) is true.
Text Solution
Verified by Experts
The correct Answer is:
D
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.
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