1.

Oxygen forms only fluorides, but other chalcogens form different halides. Why?

Answer»

Solution :The binary compound of oxygen and fluorine is called fluoride, but not oxide.
`OF_(2) and O_(2)F_(2)` are the fluorides of oxygen, with oxidation STATE of .O., respectively `+2 and +1`.
The binary compounds of oxygen with other HALOGENS are known, eg. `Cl_(2)O_(6),Cl_(2)O_(7),BrO_(3),I_(2)O_(5), I_(4)O_(9)`, etc. But they are called oxides of halogens.


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