Oxidation number of \( \mathrm{Cr} \) atom in \( \mathrm{CrO}_{5} \) and \( \mathrm{K}_{3} \math...

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Oxidation number of \( \mathrm{Cr} \) atom in \( \mathrm{CrO}_{5} \) and \( \mathrm{K}_{3} \mathrm{CrO}_{8} \) respectively.
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