CH-558
Alcohols
Chemistry · Secondary 3 · Medium · Alcohols
Ethanol is warmed with acidified potassium manganate(VII), KMnO₄. Which observation shows that ethanol has been oxidised?
- Purple solution turns colourless
- Colourless solution turns purple
- A colourless gas is given off but colour remains purple
- A white precipitate forms and the solution stays purple
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