The correct answer is: Both A and R are true, but R is not the correct explanation of A.
The main constituent of liquid petroleum gas (LPG) is propane, not methane. However, methane can be used as a fuel in homes and factories, and it can be supplied through pipelines.
LPG is a mixture of propane and butane, with propane making up the majority of the mixture. Propane is a gas at room temperature and pressure, but it can be liquefied under pressure. LPG is a clean-burning fuel that produces fewer emissions than other fossil fuels, such as coal and oil. It is also a versatile fuel that can be used for a variety of purposes, including heating, cooking, and generating electricity.
Methane is the simplest hydrocarbon and is the main component of natural gas. It is also a gas at room temperature and pressure, but it can be liquefied under pressure. Methane is a clean-burning fuel that produces fewer emissions than other fossil fuels, such as coal and oil. It is also a versatile fuel that can be used for a variety of purposes, including heating, cooking, and generating electricity.
Methane can be supplied through pipelines, but it is not the main constituent of LPG. LPG is a mixture of propane and butane, with propane making up the majority of the mixture.