Assertion `(A)`: Temporary hardness in water is due to the presence of chlorides of magnesium.
Reason `(R)` :Temporary hardness is removed by Clark's method.

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If (A) is incorrect, but (R) is correct.

Answer

D

Explanation

(A) is false, sice temporary hardness is due to bicarbonates of `Mg^(2+)` and `Ca^(2+)`