engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Chemical Sciences Heterocyclic Compounds Synthesis and Reactivity of N Atom
With respect to electrophilic aromatic substitution, reactivity order of pyrrole, pyridine and indole is
1
indole > pyrrole > pyridine
2
pyrrole > pyridine > indole
3
pyrrole > indole > pyridine
4
indole > pyridine > pyrrole