MCQ
Which compound undergoes nucleophilic substitution with $NaCN$ at the fastest rate ?
- ✓

- B

- C

- D






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Assertion $A$ : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.
Reason $R$ : Phenols react with halogen acids violently. In the light of the above statements, choose the most appropriate from the options given below:



