Answer:
Lewis Acid model definition (for acids that contain H⁺ and bases that contain OH⁻) is wide than that of Bronsted–Lowry model.
Explanation:
Acids are proton donors (H⁺).
Bases are proton acceptors (OH⁻).
Acids are electron pair acceptors.
Bases are electron pair donors.
BF₃ + NH₃ → BF₃-NH₃.
BF₃ is acid that is electron acceptor which accept electrons from NH₃ (electron donor).