1.

The pair of the compounds in which both the metals are in the highest possible oxidation state isA. `[Fe(CN)_(6)]^(3-),[Co(CN)_(6)]^(3-)`B. `CrO_(2)Cl_(2),MnO_(4)^(-)`C. `TiO_(3),MnO_(2)`D. `[Co(CN)_(6)]^(3-),MnO_(2)`

Answer» Correct Answer - B::C
(A) In `[Fe(CN)_(6)]^(3-)`,O.S. of Fe = +3
In `[Co(CN)_(6)]^(3-)`,O.S. of Co = +3
(B) In `CrO_(2)Cl_(2)` , O.S of Cr = +6
In `MnO_(4)^(-)` , O.S. of Mn = +7
(C) In `TiO_(3)` , O.S. of Ti = +6
In `MnO_(2)` , O.S of Mn = +4
(D) In `[Co(CN)_(6)]^(3-)` , O.S of Co = +3
In `MnO_(2)`, O.S. of Mn = +4.


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