A) Cr
B) \[M{{n}^{2+}}\]
C) \[C{{r}^{3+}}\]
D) \[C{{l}^{-}}\]
Correct Answer: A
Solution :
\[E_{MnO_{4}^{-}/M{{n}^{+2}}}^{0}=1.51\,V\] ?(i) \[E_{C{{l}_{2}}/C{{l}^{-}}}^{0}=1.36\,V\] ..(ii) \[E_{C{{r}_{2}}O_{7}^{-2}/C{{r}^{+3}}}^{0}=1.33\,V\] ?(iii) \[E_{C{{r}^{+3}}/Cr}^{0}=-0.74\] ..(iv) Since \[\text{C}{{\text{r}}^{\text{+3}}}\]is having least reducing potential, so Cr is the best Reducing agent.You need to login to perform this action.
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