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STD 12 - 8. microbes in human welfare — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 8. microbes in human welfare1 Mark
MCQ
In gobar gas, the maximum amount is that of
  • A
    butane
  • ✓
    methane
  • C
    propane
  • D
    carbon dioxide.
✓

Answer

Correct option: B.
methane
b
(b) : Biogas or gobar gas is a methane rich fuel gas produced by anaerobic breakdown or digestion of biomass with the help of methanogenic bacteria. It is made up of methane $(50-­70\%)$, carbon dioxide $(30-­40\%)$ with traces of nitrogen, hydrogen sulphide and hydrogen.

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