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  4. The highest oxidation state shown by Mn is:

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Q. The highest oxidation state shown by Mn is:

JIPMERJIPMER 2002The d-and f-Block Elements

Solution:

$ {}_{25}Mn $ has electronic configuration $ =1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{5}},4{{s}^{2}}. $ It can show + 7 oxidation state by loosing all the seven electrons in 3d and 4s-sub-shells.