Chemistry · Environmental Chemistry
Which of the following is NOT a chemical coagulant commonly used in water treatment?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Aluminium sulfate (Alum)
- 2Polyaluminium chloride (PAC)
- 3Aluminium chloride
- 4Nitrogen dioxide✓
Correct answer
Nitrogen dioxide
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