Primary alcohols may be oxidised to aldehydes by using either acidified potassium dichromate(VI) or acidified potassium manganate(VII). As the oxidising agent is reduced, the reaction mixtures undergo colour changes. What colour changes are observed?
- Adichromate: green to orange; manganate: purple to colourless
- Bdichromate: orange to green; manganate: colourless to purple
- Cdichromate: orange to green; manganate: purple to colourless
- Ddichromate: purple to colourless; manganate: orange to green