alleryThe pKb value of ammonia is:
A7.45
B9.45
C4.75
D1.75
Answer & Solution
Correct answer: C. 4.75
1. Aliphatic amines sit in the range 3 to 4.22.
2. They are stronger bases than ammonia.
3. Ammonia itself has a pKb of 4.75.
_Source: syllabus Chemistry Part 2, Unit 9 'Amines'_
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