in-the-sn2-reaction-mechanism-for-nitrile-formation-what-is-the-role-of-the-cyan

Question

In the SN2 reaction mechanism for nitrile formation, what is the role of the cyanide ion?

Accepted Answer

It acts as a nucleophile, displacing the halide ion from the alkyl halide.

Answer

It serves as an electrophile, attracting electrons from the alkyl halide.

Answer

It acts as a leaving group, facilitating the formation of a carbocation.

Answer

It functions as a solvent to stabilize the transition state.