Nitrous Acid Test
Easychemistry
Primary aliphatic amine treated with nitrous acid evolves:
Select the correct option:
Solution
Incorrect! Answer:
Nitrogen gas
- Reactant: Primary aliphatic amine (R−NH2).
- Reaction: R−NH2+HNO2(NaNO2+HCl)→[R−N2+Cl−]H2OR−OH+N2↑+HCl.
- Mechanism: The intermediate aliphatic diazonium salt is extremely unstable even at low temperatures.
- Observation: It breaks down immediately, typically forming an alcohol and liberating Nitrogen gas (N2) as brisk effervescence.
- Efficiency: Measuring the volume of N2 evolved is part of the Van Slyke method for estimating amino acids and proteins.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More nitrous acid test Practice Questions
About This Question
- Subject
- chemistry
- Chapter
- nitrogen organics
- Topic
- nitrous acid test
- Difficulty
- Easy
- Year
- 2025
This easy difficulty chemistry question is from the chapter nitrogen organics, covering the topic of nitrous acid test. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of nitrogen organics concepts.
Looking for more practice? Explore all chemistry questions or browse nitrogen organics questions on RankGuru.