Q. With reference to Liquefied Petroleum Gas (LPG) and Liquefied Natural Gas (LNG), consider the following statements:
1.LPG is primarily methane, while LNG mainly consists of propane and butane.
2.LNG requires cryogenic storage, whereas LPG can be stored in simple pressurised cylinders.
3.LPG is heavier than air, whereas LNG is lighter than air.
Which of the statements given above is/are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: B
Notes:

Explanation (short):

  • Statement 1 is incorrect – composition is reversed, LPG contains propane and butane, LNG is mainly methane.
  • Statement 2 is correct – LNG needs cryogenic storage; LPG is stored in pressurised cylinders.
  • Statement 3 is correct – LPG is heavier than air, while natural gas (LNG in gaseous form) is lighter and disperses quickly.

Source- IE

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