The correct decreasing order of oxidation number of oxygen in compounds \( \mathrm{BaF}_{2}, \ma...

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The correct decreasing order of oxidation number of oxygen in compounds \( \mathrm{BaF}_{2}, \mathrm{O}_{3}, \mathrm{KO}_{2} \) and \( \mathrm{OF}_{2} \) is
(a) \( \mathrm{BaO}_{2}\mathrm{KO}_{2}\mathrm{O}_{3}\mathrm{OF}_{2} \)
(b) \( \mathrm{OF}_{2}\mathrm{O}_{3}\mathrm{KO}_{2}\mathrm{BaO}_{2} \)
(c) \( \mathrm{KO}_{2}\mathrm{OF}_{2}\mathrm{O}_{3}\mathrm{BaO}_{2} \)
(d) \( \mathrm{BaO}_{2}\mathrm{O}_{3}\mathrm{OF}_{2}\mathrm{KO}_{2} \)
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