Chemistry PYQ 62 of 152 · Organic Chemistry

Which one of the following is the main constituent of LPG?

  1. AHexane
  2. BPentane
  3. CButane
  4. DMethane

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Correct answer: (c) Butane

Explanation

LPG (Liquefied Petroleum Gas) is composed mainly of butane (C4H10) and propane (C3H8).

Ethyl mercaptan is added as an odourant to detect leaks of the otherwise odourless gas.

Methane is the main constituent of CNG/natural gas, not LPG.

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