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Q.

Manganese exhibits oxidation states from

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a

+ I to + VI

b

+ III to + V

c

+ II to + VII

d

+ I to + V

answer is A.

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Detailed Solution

Manganese (Z = 25) exhibits largest number of oxidation states. This is because its electronic configuration is 3d54s2 and it has maximum number of electrons (five d electrons and two s electrons) to lose or share. Thus, it can exhibits an oxidation state of +2 to +7 which is the maximum number. 

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