State two uses of ethanol (other than as a fuel).

24 Write the chemical equation of the reaction which takes place during the burning of ethanol in air. 24 Why is ethanol used as a fuel? 25 What happens when propanoic acid is warmed with methanol in the presence of a few drops of concentrated sulphuric acid? Write equation of the reaction involved. 25 What change will you observe if you test soap solution with a litmus paper (red and blue)? Give reason for your observation.