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प्रश्न
When benzene diazonium chloride reacts with phenol, it forms a dye. This reaction is called ______.
विकल्प
Diazotisation reaction
Condensation reaction
Coupling reaction
Acetylation reaction
उत्तर
When benzene diazonium chloride reacts with phenol, it forms a dye. This reaction is called Coupling reaction.
Explanation:
Benzene diazonium chloride reacts with phenol in which the phenol molecule at its para position is coupled with the diazonium salt to form p-hydroxyazobenzene. This type of reaction is known as coupling reaction.
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संबंधित प्रश्न
Write a short note on the following:
Coupling reaction
Illustrate the following reactions giving suitable example in each case
Coupling reaction
Write equations of the following reactions:
Coupling reaction
Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride?
The product of the following reaction is:
(i)
(ii)
(iii)
(iv)
Which of the following reactions belong to electrophilic aromatic substitution?
(i) Bromination of acetanilide
(ii) Coupling reaction of aryldiazonium salts
(iii) Diazotisation of aniline
(iv) Acylation of aniline
Under what reaction conditions (acidic/basic), the coupling reaction of aryldiazonium chloride with aniline is carried out?
Benzenediazonium chloride reacts with phenol to give p-hydroxy azobenzene, an orange dye. This reaction is known as ______.
