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The stable oxidation states of Mn are

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The stable oxidation states of Mn are
A. "+2,+3"
B. "+2,+7"
C. "+3,+7"
D. "+3,+5"
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Correct Answer - B
Electronic configuration of `Mn` is `(Ar)3d^(5)4s^(2),` So stable oxidation state of Mn is `+2 & +7`
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