The SN₂ reaction on the substrate is shown in the image attached.
What is SN₂ reaction?
Primary and some secondary alkyl halides are frequently involved in SN2 reactions because they have low steric hindrance, which enables the nucleophile to launch an effective backside attack. The concentration of the substrate and nucleophile both affect the rate of the reaction.
In organic chemistry, one kind of nucleophilic substitution reaction is the SN2 (Substitution Nucleophilic Bimolecular) reaction. It entails a nucleophile replacing a departing group.