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

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 8. microbes in human welfare1 Mark
MCQ
Gobar gas contains mainly
  • ✓
    $CH _{4} \wedge CO _{2}$
  • B
    $CH _{4} \wedge O _{2}$
  • C
    $CH _{4} \wedge H _{2}$
  • D
    $CH _{4} \wedge SO _{2}$
✓

Answer

Correct option: A.
$CH _{4} \wedge CO _{2}$
a
Biogas is a methane rich fuel gas produced by anaerobic breakdown or digestion of biomass (mainly animal wastes) with the help of mathanogenic bacteria. It is composed of methane $(50-70\, \%),CO _{2}\, (30-40 \,\%)$ and traces of hydrogen, nitrogen and $H_{2} S$

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