Chemistry - GOC Question with Solution | TestHub

Two bond changes occur, and both must be clearly shown. One curly arrow runs from a lone pair on the methoxide O (the nucleophile) to the carbon, while another runs from the C-Br bond to Br (the leaving group). An arrow always starts at the electron source and points to the electron sink. Option (A) reverses both arrows, (B) omits the arrow for the C-Br bond, and (D) reverses the attack arrow. Therefore, the correct answer is (C).