1(xiii)
Compressed natural gas (CNG) is proposed to be a better alternative to fossil fuel. Which of the following reasons makes it a better alternative?
P. Combustion leaves little or no residue
Q. Absence of Carbon in CNG
R. Easily available
- (a)Only P
- (b)Only Q
- (c)Only P and R
- (d)Only Q and R
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Only P and R
Reason — Compressed natural gas (CNG) is proposed to be a better alternative to fossil fuel because its combustion is complete and do not release unburnt carbon particles or carbon monoxide.