Question detail
How does the nitrogen lone pair in amines contribute to their basicity compared to ammonia?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Amines (A-level only)
Question
- A. It is more available for protonation in amines
- B. It is less available for protonation in amines
- C. It is the same in both amines and ammonia
- D. It is absent in ammonia
Answer
It is more available for protonation in amines
Explanation
The nitrogen lone pair in amines is more available for protonation compared to ammonia due to the presence of alkyl groups that can donate electron density, enhancing basicity.
Common mistake
Misunderstanding Nitrogen's Role
Students often confuse the lone pair on nitrogen in amines as being involved in bonding rather than its role in basicity.
Remember that the lone pair on nitrogen is what allows amines to accept protons (H+), which is the basis for their basicity.
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