Which of the following hydrocarbons is mainly used as fuel?

Answer Details

Among the given options, the hydrocarbon mainly used as fuel is methane. Methane is a simple hydrocarbon with a chemical formula of CH4. It is a major component of natural gas and is also produced by many industrial processes. Methane is used as fuel for heating and cooking purposes in households and for power generation in industries. Therefore, the correct option is "Methane."