English, asked by poojakhushbooasati, 6 months ago

4. Alum is used for
(a) removing hardness of water
(b) purification of water
(c) killing germs present in water
(d) all of these

Answers

Answered by unnujet

0

Answer:

d) all of these.. alum is good for human health

Answered by AnanyaPrasad35

2

Answer:

HOPE THIS HELPS YOU PLEASE MARK ME BRAINLIST AND THANK.

Explanation:

d. all of these.

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