CNG is a fuel gas which is mainly composed of methane that is used for vehicles in general. Here CNG stands for:

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Question

CNG is a fuel gas which is mainly composed of methane that is used for vehicles in general. Here CNG stands for:

  1. A. Complex Nitrous Gas
  2. B. Certified National Gas
  3. C. Compressed Natural Gas (Correct answer)
  4. D. Coal and Nucleotide Gas

Correct Answer

Option C — Compressed Natural Gas

Detailed Solution & Explanation

The correct answer is Compressed Natural Gas.

Key Points

  • CNG stands for Compressed Natural Gas.
  • It is a cleaner-burning alternative to petrol and diesel, primarily composed of methane (CH4) compressed to less than 1% of its volume at standard atmospheric pressure.
  • CNG is used in vehicles, especially auto-rickshaws, buses, and taxis in Indian cities, as it produces significantly lower levels of carbon monoxide, hydrocarbons, and particulate matter compared to petrol and diesel.
  • Delhi mandated CNG for public transport in 1998-2001 to combat severe air pollution.