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The equivalent weight of KMnO(4) in (a) ...

The equivalent weight of `KMnO_(4)` in (a) neutral medium, (b) acidic medium and (c ) alkaline medium is `M//..` ( where `M` is mol.wt. of `KMnO_(4)`)

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(i) 158/5 = 31.6
(ii) 158/3 = 52.67
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