Question
How is phenol obtained from arene diazonium salt?
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Answer
When arene diazonium salt is slowly added to a large volume of boiling dilute sulphuric acid, phenol is obtained,
$ArN _2^{+} Cl ^{-}+ H _2 O \xrightarrow[\substack{\text { warm } \\ 283 K }]{\text { dil. } H _2 SO _4} \underset{\text { phenol }}{ ArOH }+ N _2 \uparrow+ HCl$
$ArN _2^{+} Cl ^{-}+ H _2 O \xrightarrow[\substack{\text { warm } \\ 283 K }]{\text { dil. } H _2 SO _4} \underset{\text { phenol }}{ ArOH }+ N _2 \uparrow+ HCl$
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