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The following reaction occurs in acidic ...

The following reaction occurs in acidic medium
`KMnP_(4) + 8 H^(+) 5e^(-) to K^(+) Mn^(2+) + 4H_(2) O`
what is the equivalent weight of `KMnO_(4)`?
[Molecular weight of `KMnO_(4) = 158`]

A

79

B

31.6

C

158

D

39.5

Text Solution

Verified by Experts

The correct Answer is:
b
In the reaction (in acidic medium)
`KmnO_(4) + 8H^(+) + 5e^(-) to K^(+) Mn^(2+) + 4H_(2) O` `KMnO_4)` gain5 electrons from reductant.
`:.` Equvalent weight of `KMnO_(4) = (158)/(5)`
= 31.6 (in g/equivalent
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    A
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    B
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  • 2H_(2)Orarr4e^(-)+O_(2)+4H^(+) . The equivalent weight of molecules oxygen is

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    B
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    C
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