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Which of the following is formed due to the reduction of sulfurous organic matter?

(a) Hydrogen sulfide

(b) Hydrochloric acid

(c) Sulfuric acid

(d) Sulfur dioxide

I got this question in a national level competition.

I'm obligated to ask this question of Biological Characteristics of Waste Water in division Wastewater Characteristics of Environmental Engineering

1 Answer

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Best answer
Right answer is (a) Hydrogen sulfide

Easiest explanation: Sulfurous organic matter (reduction by anaerobic bacteria) —–> H2S  + Energy.

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