Rekha's mother adds phitkari (alum) to w...

Rekha's mother adds phitkari (alum) to water collected from the pond every day in order to

decolourise water

sediment light suspended impurities

change hard water into soft water

kill germs in water

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The correct Answer is:

Alums forms precipitate with water. While gelatinous material easily trap impurities in water and float above (floceulate). Hence, it can be removed from water.

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Rekha's mother adds phitkari (alum) to water collected from the pond every day in order to

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