Multiple choice

Which of the following is not a natural gas liquid?

  1. <font size="2">Methane</font>

  2. Ethane

  3. Butane

  4. Propane

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Natural Gas Liquids (NGLs) are hydrocarbons that condense out of natural gas during processing. Methane (CH4) is the lightest alkane and remains gaseous at standard temperature and pressure, unlike ethane, propane, and butane which can be liquefied. Therefore methane is not classified as an NGL.