Question

Explain reactivity of halogens towards oxygen.

Answer 1

Reactivity of halogens towards O₂:

1. Halogens with oxygen form many oxides with different oxidation states of halogens.
2. Fluorine forms O₂ F₂ and OF₂.
3. Chlorine forms oxides like\[\ce{\overset{1+}{C}l2O, \overset{3+}{C}l2O3, \overset{5+}{C}l2O5, \overset{6+}{C}lO3 \overset{7+}{C}l2O7}\]. All oxides are oxidizing agents.
4. Bromine forms oxides like Br₂O, BrO₂, BrO₃ and iodine forms l₂O₄, l₂O₅, l₂O₇.