1.

CNG used in automobiles to check pollution, mainly consists of

Answer»

 CH4



Nature gas is 95 PERCENT METHANE (CH4) plus four other hydrocarbons:
Ethane (C2H6) - 2.5 %, Propane (C3H8) - 0.2 %, Butane (C4H10) - 0.06%, Pentanes Plus (C5H12 + C10H22) -0.02%. It also contains small amounts of: NITROGEN (N2) - 1.6%, Carbon Dixoide (CO2) - 0.7%, Hydrogen Sulphide (H2S) - TRACE, Water (H2O) - trace.



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