Alum is used as
A. An analgesic
B. A fertilizer
C. A disinfectant
D. A purifier for water
Answer: Option D
Solution(By Examveda Team)
It is aluminum potassium sulphate. This is the type of alum that you find in the grocery store for pickling and in baking powder. It is also used in leather tanning, as a flocculant in water purification, as an ingredient in aftershave and as a treatment to fireproof textiles.This Question Belongs to General Knowledge >> Chemistry
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