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Question
Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride?
Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride?
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Solution
The correct option is C Nitrobenzene
Diazonium salt is a weak electrophile and hence it reacts with electron-rich compounds containing electron donating groups such as −OH,−NH2 and OCH3 groups and not with compounds containing electron-withdrawing groups such as −NO2, etc to form coupling product. It is called coupling reaction.
Coupling reaction takes place between benzene diazonium salt and phenol to p-Hydroxyazobenzene (an orange dye)
Coupling reaction takes place between benzene diazonium salt and aniline to p-aminobenzene (a yellow dye).
Hence, option (c) is correct.
Diazonium salt is a weak electrophile and hence it reacts with electron-rich compounds containing electron donating groups such as −OH,−NH2 and OCH3 groups and not with compounds containing electron-withdrawing groups such as −NO2, etc to form coupling product. It is called coupling reaction.
Coupling reaction takes place between benzene diazonium salt and phenol to p-Hydroxyazobenzene (an orange dye)
Coupling reaction takes place between benzene diazonium salt and aniline to p-aminobenzene (a yellow dye).Hence, option (c) is correct.Suggest Corrections
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