What happens when ethanol is heated with concentrated sulphuric acid at 170 �C? Write the equation of the reaction which takes place.

32 State one advantage of soaps over detergents. 33 What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated sulphuric acid? Write equation of the reaction involved. 34 What happens when ethanol is oxidised with alkaline potassium permanganate (or acidified potassium dichromate) ? Write the equation of the reaction involved. 34 Choose those compounds from the following which can tum blue litmus solution red: HCHO, CH₃COOH, CH₃OH, C₂H₅0H, HCOOH, CH₃CHO

Give reasons for your choice.