General Knowledge: For Purifying Drinking Water Alum Is Used For?

Hone your general knowledge skills with this simple GK test.


For purifying drinking water alum is used

A. for coagulation of mud particles
B. to kill bacteria
C. to remove salts
D. to remove gases

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If you get the correct answer, please share it with your friends and family on WhatsApp, Facebook and other social networking sites.

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