MCQ
Among the following compounds, the most acidic is
  • A
    $p$-nitrophenol
  • B
    $p$-hydroxybenzoic acid
  • $o$-hydroxybenzoic acid
  • D
    $p$-toluic acid

Answer

Correct option: C.
$o$-hydroxybenzoic acid
c
Due to ortho-effect, $o$-hydroxybenzoic acid is the strongest acid.

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