NEET 2013
- Exam
- NEET
- Year
- 2013
- Subject
- Zoology
- Chapter
- Microbes in Human Welfare
NEET 2013 · Zoology · Microbes in Human Welfare
During sewage treatment, biogases are produced, which include
During sewage treatment, biogases are produced, which include
Options
- Amethane, hydrogen sulphide and carbon dioxide
- Bmethane, oxygen and hydrogen sulphide
- Chydrogen sulphide, methane and sulphur dioxide
- Dhydrogen sulphide, nitrogen and methane
Correct answer
A. methane, hydrogen sulphide and carbon dioxide
Step-by-step solution
Biogas is a mixture of gases (mainly methane) produced by the microbial activity and which may be used as fuel. During biogas production, the bacteria called methanogens digest the activated sludge and produce a mixture of gases such as methane, hydrogen sulphide, carbon dioxide and hydrogen.