Which of the following chemical is sometime added in the process of coagulation and flocculation?

Which of the following chemical is sometime added in the process of co

1.	Which of the following chemical is sometime added in the process of coagulation and flocculation?
A.	Aluminum sulphate
B.	Aluminum oxide
C.	Calcium chloride
D.	None of these
Answer» B. Aluminum oxide

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Which of the following chemical is sometime added in the process of coagulation and flocculation?

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