Use of coagulants such as alum

1.	Use of coagulants such as alum
A.	None.
B.	results in reduction of pH of the treated water.
C.	results in increase of pH of the treated water.
D.	results in no chnage in pH of the treated water.
Answer» B. results in reduction of pH of the treated water.

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Use of coagulants such as alum

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