Transition metals (A-level only)

In which conversion is the transition metal oxidized?

$MnO42−→MnO4−\text{MnO}_4^{2-} \rightarrow \text{MnO}_4^{-}$

$VO2+→V3+\text{VO}_2^{+} \rightarrow \text{V}^{3+}$

$CrO42−→Cr2O72−\text{CrO}_4^{2-} \rightarrow \text{Cr}_2\text{O}_7^{2-}$

$[Co(H2O)6]3+→[Co(H2O)6]2+[\text{Co(H}_2\text{O)}_6]^{3+} \rightarrow [\text{Co(H}_2\text{O)}_6]^{2+}$

In which conversion is the transition metal oxidized?

$MnO42−→MnO4−\text{MnO}_4^{2-} \rightarrow \text{MnO}_4^{-}$

$VO2+→V3+\text{VO}_2^{+} \rightarrow \text{V}^{3+}$

$CrO42−→Cr2O72−\text{CrO}_4^{2-} \rightarrow \text{Cr}_2\text{O}_7^{2-}$

$[Co(H2O)6]3+→[Co(H2O)6]2+[\text{Co(H}_2\text{O)}_6]^{3+} \rightarrow [\text{Co(H}_2\text{O)}_6]^{2+}$

Transition metals (A-level only) Questions