Q - Arrange these bonds from least to greatest ionic character.
A - Carbon-hydrogen
B - Oxygen-oxygen
C - Sodium-oxygen
D - Oxygen-fluorine
C, D, A, B. The bond between sodium and oxygen is the only ionic bond in the list. Any bond between a pair of identical atoms is the least ionic. Carbon-hydrogen bonds are nonpolar and much lower in ionic character than oxygen-fluorine bonds.