Given below are two statements: Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow S N 2 mechanism. Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows S N 1 mechanism. In the the light of the above statements, choose the most appropriate from the questions given below:

Step-by-step solution

Statement - I: Rate of S N 2 ∝ [ R - X ] Nu - S N 2 reaction is favoured by high concentration of nucleophile Nu - & less crowding in the substrate molecule. S N 2 Reaction Mechanism This reaction proceeds through a backside attack by the nucleophile on the substrate. The nucleophile approaches the given substrate at an angle of 180 ° to the carbon-leaving group bond. The carbon-nucleophile bond forms and carbon-leaving group bond breaks simultaneously through a transition state. Now, the leaving group is pushed ou