ennylois2020 ennylois2020

21-08-2021
Chemistry

contestada

3.
Alum is used in water treatment as
A. a germicide.
В. a decolourising agent.
C. an antioxidant.
D. a coagulating agent.

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21-08-2021

Answer: Alum is used in water treatment as a germicide

Explanation:

A. a germicide

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