Chemistry - GOC Question with Solution | TestHub

Two bond changes occur, and both must be shown: one curly arrow runs from the ethoxide oxygen lone pair to the carbon bearing chlorine (forming the C–O bond), and a second curly arrow runs from the C–Cl bond to chlorine (breaking the bond and giving Cl^-). Only option (B) shows both arrows in the correct directions. Option (A) omits the C–Cl arrow, (C) reverses the attacking arrow, and (D) reverses both arrows.