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Organic Chemistry
Quick questions on Nitrogen compounds: amines, amides and amino acids: Singapore A-Level H2 Chemistry
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are basicity of amines?Show answer
An amine acts as a base because the nitrogen lone pair can accept a proton: . Basicity depends on how available that lone pair is:
What are hydrolysis of amides?Show answer
Amides () are hydrolysed by refluxing with acid or alkali:
What is the isoelectric point?Show answer
The isoelectric point is the pH at which the zwitterion form dominates and the amino acid has no net charge. The structure changes with pH:
What is q1?Show answer
Write the equation for the preparation of ethylamine from bromoethane and ammonia, and state the conditions. [2 marks]
What is q2?Show answer
Explain why ethylamine is a stronger base than phenylamine. [2 marks]
What is q3?Show answer
State the products of the alkaline hydrolysis of ethanamide (). [2 marks]
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