Q47 / 180 · KCET 2022 · Chemistry

The test to differentiate between pentan-2-one and pentan-3-one is

  • A
    Benedict's test
  • B
    Fehling's test
  • Correct answer
    C
    Iodoform test
  • D
    Baeyer's test

Solution

Pentan-2-one gives positive iodoform test when react with $\mathrm{NaOH}$ and $\mathrm{I}_2$ and form yellow precipitates of iodoform. While pentan-3-one does not gives positive iodoform test. The involved reactions given below : Figure
Figure

Hence, the correct answer is option: 'C'.

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