MCQ
The $3d-$ elements show variable oxidation states. What is the maximum oxidation state shown by the element $Mn$
- A$4$
- B$5$
- C$6$
- ✓$7$
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$A{l_{\left( s \right)}}|A{l^{ + 3}}\left( {0.1\,M} \right)||F{e^{ + 2}}\left( {0.001\,M} \right)|Fe\left( s \right)$ If $E_{A{l^{ + 3}}/Al}^o = - 1.66\,V$ and $E_{Fe/F{e^{ + 2}}}^o = + 0.44\,V$