Identify the product A in the following reaction. [figure]
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Answer
(2) [figure]
Solution
[figure]
[figure]
(i) Diazotisation ⇒ benzenediazonium chloride
(ii) Sandmeyer reaction ⇒ chlorobenzene
(iii) Dow's process: Cl replaced by O-Na+ ⇒ sodium phenoxide
(iv) Acidification ⇒ phenol
Answer: (2)