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When t-butanol and n-butanol are separately treated with a few drops of dilute KMnO_(4) in one case only, the purple colour disappears and brown precipitate is formed. Which of the two alcohols gives the above reaction and which is the brown precipitate? |
Answer» SOLUTION :`t`-Butanol is not oxidised by dilute `KMnO_(4)`, so it does not GIVE brown-black precipitate of `MnO_(2)`. `n`-Butanol is oxidised with dil `KMnO_(4)`, so the purple colour of `KMnO_(4)` is DISCHARGED and `MnO_(4)^(ɵ)` is converted to brown-black precipitate of `MnO_(2)`. 
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