Rekha's mother adds Phitkari (Alum) to water collected from the pond e – McqOptions

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1.	Rekha's mother adds Phitkari (Alum) to water collected from the pond every day in order to (CTET Jan 2012)
A.	sediment light suspended impurities
B.	change hard water into soft water
C.	kill germs in water
D.	decolourise water
Answer» B. change hard water into soft water

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