Consider the following statements:

  1. Higher the cetane number of the fuel, the more difficult is the auto-ignition.
  2. Higher the octane number of the fuel, the faster is the auto-ignition.
  3. Biodiesel has a higher cetane number than diesel fuel. 

Which of the above statements is/are correct?

Answer: [C] Only 3

First statement is incorrect because the higher the octane numbers of fuel the more difficult the auto-ignition. Second statement is incorrect because the higher the cetane number of fuel the faster the auto-ignition.

This question is a part of GKToday's Integrated IAS General Studies Module