d031b852_ध_रस_यन___क__स_च____व_क_प_ड_य___Source_and_description
[Chemical name] methane [Chemical formula] CH4 [Common or alternative name] Natural Gas [Source and description] 
Gas line in many homes.
सरलता से उपलब्ध रसायनों की सूची - विकिपीडिया