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The number of moles of KMnO(4) reduced b...

The number of moles of `KMnO_(4)` reduced by `1 "mol of" KI` in alkaline medium is

A

one

B

two

C

five

D

one fifth

Text Solution

Verified by Experts

The correct Answer is:
b
`2KMnO_(4)+H_(2)Orarr2KOH+2MnO_(2)+3[O]KI+3[O]rarrKIO_(3)`
`2KMnO_(4)+H_(2)O+H_(2)O+KIrarr2MnO_(2)+2KOH+KIO`
`therefore 2 KMnO_(4)=KI`
Thus 2 moles of `KMnO_(4)` are reduced by 1 mole of KI i.e option (b) is correct
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