Question

Arrange the following compounds in the order of increasing reactivity towards nucleophilic substitution reactions:

1. Chlorobenzene
2. 2, 4-dinitrochlorobenzene
3. 4-nitrochlorobenzene
4. 2, 4, 6-trinitrochlorobenzene

Answer 1

Chlorobenzene < 4-Nitrochlorobenzene < 2,4-Dinitrochlorobenzene < 2,4,6-Trinitrochlorobenzene