Alum [Al 2 (SO 4 ) 3 ] is used as a coagulant in water treatment to re – McqOptions

MCQOPTIONS

1.	Alum [Al 2 (SO 4 ) 3 ] is used as a coagulant in water treatment to remove
A.	colour
B.	turbidity
C.	bacteria
D.	all (a), (b) and (c)
Answer» E.

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