Which one is the weakest base among these?
Correct answer: A. Aniline
- A. Aniline
- B. Pyridine
- C. Ammonia
- D. Methylamine
Explanation
Aniline is the weakest base because the lone pair of electrons on its nitrogen atom is delocalized into the benzene ring through resonance. This makes the lone pair less available to accept a proton compared to the other amines.
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About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
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