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.
Last updated
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.
Practise Acids, Bases and Salts
314 free Acids, Bases and Salts MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
All of the following are postulates of Arrhenius theory of ionization except
Which of the following aqueous solution will be basic?
A start of reaction, concentration of reactants are on
An acid that can act as an oxidizing, dehydrating and acid-producing agent is
Which of the following compounds is the strongest Bronsted acid