Question

Which of the following acids are produced by microorganisms such as fungus and mold?

(a) Oxalic acid

(b) Lactic acid

(c) Acetic acid

(d) Oxalic acid, lactic acid, acetic acid, and citric acid

I had been asked this question by my school teacher while I was bunking the class.

This intriguing question comes from Environments in section Other Environments of Corrosion Engineering

Answer 1

The correct choice is (d) Oxalic acid, lactic acid, acetic acid, and citric acid

Easy explanation: Macroorganisms such as fungus and mold are also capable of influencing corrosion of metals in many environments. They assimilate organic matter and can produce considerable amounts of acids such as oxalic acid, lactic acid, acetic acid, and citric acid.