Question

The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

a.

decreases.

b.

increases.

c.

remains constant.

d.

may increase or decrease ; depends on the chemical characteristics of polluted water.

Answer: (a).decreases.

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Q. The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

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