Computer · Environmental Engineering
Residual chlorine in water can be determined by which of the following tests?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Winkler's method
- 2Mohr's argentometric method
- 3Iodometric test
- 4Orthotolidine test✓
Correct answer
Orthotolidine test
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