In follwing compound which has minimum ionic radius of maganese is :
In follwing compound which has minimum ionic radius of maganese is :
A. `Mn_(2)(SO_(4))_(3)`
B. `MnO`
C. `KMnO_(4)`
D. `MnO_(4)`
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Correct Answer - C
`+ve` charge `uarr Z_("eff") uarr` Atomic radius `darr`
`overset(+7)(KMnO_(4)) lt overset(+4)(MnO_(2)) lt overset(+3)(Mn_(2)(SO_(4))_(3)) lt overset(+2)(MnO)`
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