The reaction of phenol with chloroform and sodium hydroxide to give $o$-hydroxybenzaldehyde involves the formation of which intermediate?

  • A
    Dichlorocarbene
  • B
    Trichlorocarbene
  • C
    Chlorine atoms
  • D
    Chlorine molecules

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Order of acidic nature

Phenol reacts with $CHCl_3$ and $NaOH$ (at $340 \ K$) to give

The correct order of acid strength of the following compounds is:
$A$. Phenol
$B$. $p$-Cresol
$C$. $m$-Nitrophenol
$D$. $p$-Nitrophenol

Why is picric acid a stronger acid than carboxylic acids,despite being a phenolic compound?

$A$ compound that easily undergoes bromination is

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