This behaviour is also used as a qualitative test for the presence of double or triple bonds in a molecule , since the reaction decolourises the permanganate solution ; thus it is sometimes referred to as PERSON@1 's reagent .

This behaviour is also used as a qualitative test for the presence of double or triple bonds in a molecule , since the reaction decolorizes the permanganate solution ; thus it is sometimes referred to as PERSON@1 's reagent .
