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  4. If Mn2 + has 'X' number of unpaired electrons and 'Y' other positive oxidation states than +2. What is the sum of X + Y here?

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Q. If $Mn^{2 +}$ has 'X' number of unpaired electrons and 'Y' other positive oxidation states than +2. What is the sum of X + Y here?

NTA AbhyasNTA Abhyas 2020The d-and f-Block Elements

Solution:

$Mn^{2 +} \rightarrow \left(A r\right)3d^{5}$

unpaired $e^{-}\left(X\right)=5$

Mn can show +3, +4, +5, +6 and +7 oxidation states also other than +2.

Y = 5

X + Y = 5 + 5 = 10