An organic compound ‘A’ is a constituent of wine and beer and is also used as fuel in spirit lamp. Compound ‘A’ on heating with alkaline potassium permanganate gives another compound ‘B’ which turns blue litmus to red. Compound ‘A’ and ‘B’ combine in the presence of conc. H2SO4 to give a sweet smelling compound ‘C’. Identify compounds ‘A’, ‘B’ and ‘C’. Also write the equations involved in the reaction.