1.

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)`

Answer» Correct Answer - 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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