__The alum, when added as a coagulant in water__ – McqOptions

MCQOPTIONS

1.	__The alum, when added as a coagulant in water__
A.	Does not require alkalinity in water for flocculation
B.	Does not affect pH value of water
C.	Increases pH value of water
D.	Decreases pH value of water
Answer» E.

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