Which of the following alcohols needs acidic $\mathrm{KMnO}_{4}$ to convert it into aldehyde or ketone?

Which of the following alcohols needs acidic $\mathrm{KMnO}_{4}$ to convert it into aldehyde or ketone?
  1. Ethanol
  2. propan-1-ol
  3. propan-2-ol
  4. 2-Methyl propan $-2$-ol

Solution

2-methyl propan-2-ol To convert 2-methyl propan-2-ol to ketone, acidic $\mathrm{KMnO}_{4}$ is required. Under strong reaction conditions such as powerful oxidising agents $\left(\mathrm{KMnO}_{4}\right)$ and extreme temperature, cleavage of various $\mathrm{C}-\mathrm{C}$ bonds occurs.

Asked in: MHT CET 2020 (16 Oct Shift 1)

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