1.

In final step of the domestic water process, the effluent contain ___________ BOD.(a) 10ppm(b) 15ppm(c) 20ppm(d) 25ppmI had been asked this question during an online interview.Asked question is from Methods of Reducing Water Pollution topic in chapter Water of Applied Chemistry

Answer»

Correct answer is (d) 25ppm

The best EXPLANATION: The EFFLUENT obtained in the final STEP of the DOMESTIC WATER process contains ammonia ion and having the 25ppm.



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