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In the redox reactin xKMnO(4)+NH(3)rar...

In the redox reactin
`xKMnO_(4)+NH_(3)rarryKNO_(3)+MnO_(2)+KOH+H_(2)O`

A

x=4,y=6

B

x=3,y=8

C

x=8,y=6

D

x=8,y=3

Text Solution

Verified by Experts

The correct Answer is:
d
`MnO_(4)^(-)+2H_(2)O+3e^(-)rarrMnO_(2)+4OH^(-)xx8`
`NH_(3)+9OH^(-)rarrNO_(3)^(-)+6H_(2)O+8e^(-)[xx`
`8MnO_(4)^(-)+3NH_(3)rarr8MnO_(2)+3NO_(3)^(-)+5OH^(-)+2H_(2)O`
or `8KMnO_(4)+3 NH_(3)rarr8MnO_(2)+3KNO_(3)+5KOH+2H_(2)O`
thus coefficient of `KmnO_(4)=8` and that of `KNO_(3)=3`
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