Which of the following compounds undergo nucleophilic substitution rea – InterviewSolution

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1.	Which of the following compounds undergo nucleophilic substitution reaction most easily?
Answer» Solution :PRESENCE of electron-withdrawing groups (i.e., `NO_(2),CN`, etc.) at o- and p-position w.r.t. Cl ACTIVATES it towards nucleophilic substitution reactions while presence of electron-donating groups (i.e., `CH_(3),OCH_(3)`, etc.) deactivates it towards nucleophilic substitution reaction. thus, p-nitrochlorobenzene UNDERGOES nucleophilic substitution reaction most easily. thus, option (a) is correct.

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