Option C: the fluorine-lithium bond is expected to have the most ionic character due to the substantial electronegativity difference, leading to pronounced electron transfer and charge separation.
The degree of ionic character in a bond is determined by the electronegativity difference between the atoms involved. In the context of the provided options: C. Fluorine-lithium bond
Fluorine is a highly electronegative element, while lithium is less electronegative. The electronegativity difference between them is substantial, indicating a greater tendency for electron transfer from lithium to fluorine. This results in the formation of ions with a significant charge separation, characteristic of ionic bonds.
Comparatively, options A (Carbon-carbon bond) and B (Carbon-oxygen bond) involve nonmetals with similar electronegativities, leading to covalent bonds where electrons are shared more equally. Option D (Oxygen-lithium bond) also involves a highly electronegative atom (oxygen) and a less electronegative one (lithium), but the electronegativity difference is not as pronounced as in the fluorine-lithium bond.
The fluorine-lithium bond (Option C) is likely to exhibit the most ionic character due to the substantial electronegativity difference between fluorine and lithium, leading to a significant transfer of electrons and the formation of ionic bonds.
Therefore C: Fluorine-lithium bond is the right answer.
The question probable may be:
Which of the following bonds is likely to have the most ionic character?
A Carbon-carbon bond
B Carbon-oxygen bond
C Fluorine-lithium bond
D Oxygen-lithium bond