Biology, asked by bidishahazra28042000, 3 months ago

some impurities not settle down,
to remove suspended impurities alum in is added.

Answers

Answered by nr78902

0

When alum is added to raw water it reacts with the bicarbonates alkalinities present in water and forms a gelatinous precipitate.

It neutralizes all the suspended impurities of water resulting in their coagulation

Answered by Anonymous

4

Answer:

could you tell the question again I would help you

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