in-an-snar-reaction-involving-pyridine-what-is-the-first-step-of-the-addition-el

Question

In an SNAr reaction involving pyridine, what is the first step of the addition-elimination mechanism?

Accepted Answer

Nucleophilic attack at the electrophilic carbon adjacent to nitrogen.

Answer

Elimination of a hydrogen atom from the ring.

Answer

Formation of a benzyne intermediate.

Answer

Formation of a carbocation intermediate.