# Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in _____ ? with Answer - Chemical Engineering Mcqs | TestPrep

> Solved MCQ: Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in _____ ? Correct Answer: D. All A., B. and C.. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in _____ ?

Direct Answer & Quick Reference

The correct option is **D. All A., B. and C.**.

A. Coagulation and flocculation of colloids

B. Oxidation of carbonaceous matter to CO2

C. Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter

D. All A., B. and C. **(Correct Answer)**

✨ Explain with AI

Verified Key: D. All A., B. and C.
Solved by 4,252+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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