Question

What is the use of alum in loading? a) Alum is used to make the evaporation faster b) Alum is used to make the sedimentation faster c) Alum is used to make the sedimentation slower d) Alum is used to make the decantation faster​

Answer 1

Answer:

B

Explanation:

alum is heavy and it attaches it to the particles making it heavy

Answer 2

Answer:

Ans: (d) Alum is used to make the decantation faster.

Explanation:

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