When Alcohol (C2H5O) burns, it emits a blue flame. When methane (Ch4) burns it emits a yellow flame. What causes the alcohol to burn blue? How is this related to getting the proper "blue inside a blue" flame for your Bunsen Burner?

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

answerambulatory;