Diazotization
Diazotization of aniline produces:
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About This Question
- Subject
- chemistry
- Chapter
- organic compounds containing nitrogen
- Topic
- diazotization
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Benzenediazonium chloride
Diazotization is the reaction of a primary aromatic amine with nitrous acid (HNO2).
- Reagents: NaNO2 and HCl at 0−5∘C.
- Reaction: C6H5NH2+NaNO2+2HCl→C6H5N2+Cl−+NaCl+2H2O
- Product: Benzenediazonium chloride.
- The low temperature is critical because diazonium salts are thermally unstable and decompose above 5∘C to release N2 gas. These salts are important intermediates for Sandmeyer, Gatterman, and Coupling reactions.
This easy difficulty chemistry question is from the chapter organic compounds containing nitrogen, covering the topic of diazotization. It appeared in the 2025 exam.
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