Question

Pyridine (I) Pyrrol (II) Imidazole (III)
Which one(s) is/are true?

• A. (I) and (III) are modest Bronsted bases whereas (II) is not
• B. In (III) $N^a$ is more basic than $N^b$
• C. When (II) is protonated in the presence of a strong acid, protonation occurs at $C-2$
• D. All the nitrogen present in (I), (II), and (III) is $s{p}^2$ hybridised

Answer 1

Answer: (A), (C), (D)

Statement (c) is true
Statement (d): Due to resonsnce all the N in I,II, and III is $s{p}^2$ hybridised and hence the statement is true