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The ionic charges of manganate and permanganate ion are respectively
A. `-2,-2`
B. `-1,-2`
C. `-2,-1`
D. `-1,-1`

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Correct Answer - C
Chemical formula for manganate and permanganate ion respectively are `Mn_(4)^(2-)` and `mnO_(4)^(-)`. Thus, the ionic charge of manganate and permangante ion are respectively -2 and -1.

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