A) \[Cr\]
B) \[Fe\]
C) \[Mn\]
D) \[V\]
Correct Answer: C
Solution :
Each of the element in group IIIB to VIIB can show the maximum oxidation state equal to its group number. \[Mn\]shows maximum number of oxidation states on the basis of following electronic configuration \[_{25}Mn=1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}3{{p}^{6}}3{{d}^{5}},\,\,4{{s}^{2}}(+7)\]
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