Between HF, HCl, HBr and HI, HF has the highest ionic character because

Options

A. F has the highest electron affinity
B. In HF , electronegativity difference is highest
C. `F^(-)` ion has the highest value of ionic radius
D. Atomic orbitals of H and F have almost similar energy

Answer

B

Explanation

HF has the highest electronegativity difference because electronegativity of halogen follow the order `F gt CL gt Br gt I`