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The degree of dissociation alpha of a we...

The degree of dissociation `alpha` of a week electrolyte is
where `n` is the number of ions given by `1 mol` of electrolyte.

A

`(i-1)/(n+1)`

B

`(i-1)/(n-1)`

C

`(n-1)/(i-1)`

D

`(n+1)/(i-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`nA hArr A_n " " A_n hArr nA`
`1 , " " 1`
`(1- alpha, alpha//n) " " (1-alpha , nalpha)`
`i=1-alpha+alpha//n " " i=1-alpha+nalpha`
`rArr alpha=(i-1)/(n-1)`
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