Oxidation of an alkyne with hot concentrated KMnO4 gives only propanoic acid. The alkyne is?
If the oxidation of an alkyne with hot concentrated KMnO4 gives only propanoic acid then the alkyne is propyne.
Propyne will get oxidized due to KMnO4 and get a unstable form from which the water will drain out and it form propanol. Which again get oxidised with KMnO4 and then finally form propanoic acid.