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Four statements for Cr and Mn are given below:
(i) `Cr^(2+)` and `Mn^(3+)` have the same electronic configuration.
(ii) `Cr^(2+)` is a reducing agent while `Mn^(3+)` is an oxidising agent.
(iii) `Cr^(3+)` is an oxidizing agent while `Mn^(3+)` is a reducing agent.
(iv). both Cr and Mn are oxidizing agents.
The correct statemetns are
A. `i`,iii,iv
B. `i`,ii
C. `i`,ii,iv
D. `i`,iv

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