Liquefied petroleum (LP) gases include which of the following?

Liquefied petroleum (LP) gases primarily consist of propane and butane. These gases are derived from natural gas processing and petroleum refining. When subjected to moderate pressures, propane and butane can be liquefied, making them convenient fuels for heating, cooking, and powering vehicles.

Propane is a three-carbon alkane (C3H8), while butane is a four-carbon alkane (C4H10). Both are effective as fuel gases in various applications, including portable stoves, residential heating, and outdoor grills. Their characteristics, such as being clean-burning and efficient, make them preferred choices for LPG applications.

Other options include methane, which is a different type of gas and not classified as an LP gas, as it is typically found in natural gas, and air, which is not a fuel but rather a mix of gases essential for combustion. Therefore, the most accurate response identifies propane and butane as the primary constituents of liquefied petroleum gases.