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Answer the following.
What are the products formed when benzene diazonium chloride reacts with phenol in weak alkaline…
What are the products formed when benzene diazonium chloride reacts with phenol in weak alkaline medium? (Give equation).
Answer
Answer
AIEquation: $\mathrm{C_{6}H_{5}N_{2}Cl} + \mathrm{C_{6}H_{5}OH} \xrightarrow{\text{NaOH}\text{ }\text{(weak}\text{ }\text{alkaline)}\text{,}\text{ }\text{273-278}\text{ }\text{K}} \mathrm{C_{6}H_{5}N=NC_{6}H_{4}OH} + \mathrm{HCl}$
Product: 4-hydroxyazobenzene
p-Hydroxyazobenzene (4-hydroxyazobenzene), an orange dye, and HCl are formed (coupling reaction).
From ISC 2022 Chemistry - Specimen paper (Semester 2), Paper 1, question 6(ii).