MolSynapsequestion bank

MolSynapse / Question bank / General Organic Chemistry II: Acids and Bases / Basic strength of amines and heterocycles

NEET levelSingle correct optionDifficulty 1 of 3g2066

Which of the following is the strongest base?

Apyridine
Bpyrrole
Cpiperidine
Daniline

Answer: C

Piperidine has a localised lone pair on an sp

^{3}

nitrogen (pKaH 11.1). Pyridine has an sp

^{2}

nitrogen (5.2), aniline's lone pair is delocalised (4.6) and pyrrole's is part of the aromatic sextet (non-basic).

Practice General Organic Chemistry II: Acids and Bases More on Basic strength of amines and heterocycles

Previous questionNext question

More questions on Basic strength of amines and heterocycles

Which of the following is the weakest base? NEET level
Which of the following is the strongest base in aqueous solution? NEET level
Guanidine, HN=C(NH2)2, is a very strong organic base (pKaH of guanidinium = 13.6) because NEET level
Which is the correct order of basic strength of ethylamines in aqueous solution? JEE Main level
Arrange in decreasing order of basic strength in the gas phase: CH3NH2, (CH3)2NH, (CH3)3N. JEE Main level
In aqueous solution (CH3)3N is a weaker base than (CH3)2NH because JEE Main level