Question

Assertion : Compressed natural gas $(CNG)$ is natural gas under pressure and mainly composed of methane.
Reason : One of the advantages of using $CNG$ as a fuel in automobiles is that it requires very less space for storage as compared to that of petrol or diesel.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (C)

Compressed natural gas $(CNG)$, is made by compressing natural gas (which is mainly composed of methane, $CH_4$). It is a better fuel than petrol or diesel as its combustion produces fewer undesirable gases than petrol or diesel. The cost and placement of fuel storage tanks is the major barrier to wider adoption of $CNG$ as a fuel. $CNG$ vehicles require a great amount of space for fuel storage than conventional gasoline powered vehicles. Laying down pipelines to deliver $CNG$ through distribution points/pumps is another difficulty faced in switching over to $CNG$ as an automobile fuel.