The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is : (Note: The compounds are chloro benzene with different nitro positions: (i) Chlorobenzene, (ii) 4-nitrochlorobenzene, (iii) 2,4-dinitrochlorobenzene, (iv) 2,4,6-trinitrochlorobenzene)
The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is : (Note: The compounds are chloro benzene with different nitro positions: (i) Chlorobenzene, (ii) 4-nitrochlorobenzene, (iii) 2,4-dinitrochlorobenzene, (iv) 2,4,6-trinitrochlorobenzene)
Show Hint
- $(iv)<(iii)<(ii)<(i)$
- $(iv)<(i)<(iii)<(ii)$
- $(i)<(ii)<(iii)<(iv)$
- $(iv)<(i)<(ii)<(iii)$
The Correct Option is C
Solution and Explanation
Step 2: Electron-withdrawing groups (EWG) like $-NO_2$ at ortho and para positions stabilize the carbanion intermediate (Meisenheimer complex).
Step 3: More $-NO_2$ groups = greater stabilization = faster reaction.
Step 4: Thus, Trinitrochlorobenzene (Picryl chloride) is the most reactive, and chlorobenzene is the least.
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