Transition and InnerTransition Elements - Result Question 102
####29. The pair of compounds having metals in their highest oxidation state is
(2004, 1M)
(a) $MnO _2, FeCl _3$
(b) $\left[MnO _4\right]^{-}, CrO _2 Cl _2$
(c) $\left[Fe(CN) _6\right]^{3-},\left[Co(CN) _3\right]$
(d) $\left[NiCl _4\right]^{2-},\left[CoCl _4\right]^{-}$
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Solution:
- In $MnO _4^{-}, Mn^{7+}$ is in highest oxidation state possible for $Mn$. In $CrO _2 Cl _2, Cr^{6+}$ is in highest oxidation state possible for $Cr$.
