Question
Write short notes :
Diazotisation
Diazotisation
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Answer
Diazotisation : When aromatic amine is treated with $NaNO _2$ and $HCl (273-278 K)$ arene diazonium salts are formed. This reaction is called diazotisation. By the reaction of aniline benzene diazonium chloride is formed. Due its instability this is used immediately.
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$2\text{H}_2\text{O}_2\xrightarrow[\text{alkaline medium}]{\text{I}^-}2\text{H}_2\text{O}+\text{O}_2$
the proposed mechanism is as given below:
→$2\text{H}_2\text{O}_2\xrightarrow[\text{alkaline medium}]{\text{I}^-}2\text{H}_2\text{O}+\text{O}_2$
the proposed mechanism is as given below:
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