1.

Amongst the following, identify the species with an atom in + 6 oxidation state:

A. \[{{[Mn{{O}_{4}}]}^{-}}\]
B. \[{{\left[ Cr{{\left( CN \right)}_{6}} \right]}^{3-}}\]
C. \[C{{r}_{2}}{{O}_{3}}\]
D. \[Cr{{O}_{2}}C{{l}_{2}}\]
Answer» E.


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