Environment & Ecology · Environment
Which chemical is most commonly added as a chemical coagulant during drinking water treatment?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Sodium chloride
- 2Alum [Al2(SO4)3·18H2O]✓
- 3Calcium carbonate
- 4Ferrous sulphate
Correct answer
Alum [Al2(SO4)3·18H2O]
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