Q1 / 150 · MHT CET 2023 (10 May Shift 1) · Chemistry

Identify the compound with highest acidic strength from following.

  • A
    Ethanol
  • B
    t-Butyl alcohol
  • C
    Phenol
  • Correct answer
    D
    p-Nitrophenol

Solution

Phenols show weak acidic character while alcohols are neutral. Electron-withdrawing groups (like $-\mathrm{NO}_2$ ) increase the acidity of substituted phenols. Hence, p-nitrophenol has the highest acidic strength among the given compound.

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

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