1.

Amongst the following identify the species with an atom in + 6 oxidation state   [IIT Screening 2000]

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


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