(A) alum will repel the particles in
water
(B)alum will increase the alkalinity
of water
(c)alum will bridge between particles
in water
(D) alum will produce a large amount
of sludge
(A) alum will repel the particles in water (B)alum will increase the alkalinity of water (c)alum will bridge between par
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(A) alum will repel the particles in water (B)alum will increase the alkalinity of water (c)alum will bridge between par
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