_________ is the central chemical in wet end chemistry and has gained – McqOptions

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1.	_________ is the central chemical in wet end chemistry and has gained much attention. There are various papers describing the behaviour of alum during papermaking process that generally contradict with each other.
A.	Filler
B.	Alum
C.	Zeta potential
D.	Flocculation
Answer» C. Zeta potential

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