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5745. Which of the following is the most lethal water pollutant?

September 7, 2025 by Admin

Phenol and cynide

Chlorine

Alkalis

Suspended solids

✅ The correct answer is option A.

Categories Chemical Engineering, Engineering, Environmental Engineering MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Enviornmental Engineering MCQs

730. The gas evolved in sewers is________________?

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