The degree of dissociation `(alpha)` of a weak electrolyte, `K _(2) SO _(4)` is related to Vant Hoff factor (i) by the expression

Options

A. `I = 1 + 2 prop`
B. `I = 1 + 3 prop`
C. `I = 1 + prop`
D. `I = 1 + 4 prop`

Answer

A

Explanation

`K _(2) SO _(4) to 2 K ^(+) + SO _(4) ^( 2- )`
` 1- prop 2 prop prop`
`i = 1 + 2 prop`
Therefore, the degree of dissociation `(alpha)` of a weak electrolyte, `K _(2) SO _(4)` is related to van.t Hoff factor (i) by the expression `I = 1 + 2 prop.`