Which oxides of transition metals are more easily formed than fluorides?
Due to multiple oxidation states of transition metals.
Due to less oxidizing capacity of fluorine.
Decrease in steric crowding in the oxide.
Increase in steric crowding in the oxide.
Oxygen brings out the group oxidation state for many elements more readily than does fluorine because fewer O atoms than F atoms are needed to achieve the same oxidation number, thus decreasing steric crowding.
Hence option 3 is correct.