In a water treatment plant, _______ is used in settling of suspended impurities from water

Camphor

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Napthaline

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Blue vitrol

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Alum

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Solution

The correct option is D Alum
Alum is used in water treatment plants toremove impurities that remain suspended in water. Alum particles attach themselves with the light and suspended impurities causing them to become heavy and hence settle at the bottom.

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Question 8 (d)

Fill up the blanks
Impurities settled at the bottom when muddy water was kept overnight in a bucket.
The clear water was then poured off from the top. The process of separation used in this example is called ___.

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In a water treatment plant, _______ is used in settling of suspended impurities from water

The correct option is D AlumAlum is used in water treatment plants toremove impurities that remain suspended in water. Alum particles attach themselves with the light and suspended impurities causing them to become heavy and hence settle at the bottom.

The correct option is D Alum
Alum is used in water treatment plants toremove impurities that remain suspended in water. Alum particles attach themselves with the light and suspended impurities causing them to become heavy and hence settle at the bottom.