Question

Which violates the rules for curved arrows?

A) Electron donation in a nucleophilic attack.
B) Representation of bond formation.
C) Correct depiction of electron flow in a reaction mechanism.
D) Depiction of electron movement in resonance structures.

Answer 1

The correct answer is B) Representation of bond formation.

Step-by-step explanation:

The correct answer is B) Representation of bond formation.

Curved arrows are used in organic chemistry to represent the movement of electrons during chemical reactions. They are used to show the formation and breaking of covalent bonds. So, any representation of bond formation using curved arrows is not a violation of the rules. However, incorrect depiction of bond formation violates the rules.

For example, if a curved arrow shows the movement of electrons from a nucleophile towards an electrophilic center to form a new bond, that would be a correct representation of bond formation using curved arrows.