Previous year MCQs

General science UPPSC 2005 GS-I
Question

CNG used in automobiles to check pollution, mainly consists of

Answer & Solution

Answer: (Detailed Solution Below)

Option B: CH4

Detailed Solution:

The correct answer is “CH4”.
Compressed natural gas (CNG) used in automobiles to check pollution mainly consists of methane (CH4).

CNG is a clear, odor-less, non-corrosive fuel that is extracted from natural gas wells or produced through processes like biogas production or synthetic gas generation. It is compressed to less than 1% of the volume it occupies at standard atmospheric pressure.

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