1.

Which of the following electrolytes has the same value of van't Hoff's factor (i) as that of Al_(2)(SO_(4))_(3) (if all are 100% ionised) ?

Answer»

`K_(2)SO_(4)`
`K_(3)[FE(CN)_(6)]`
`Al(NO_(3))_(3)`
`K_(4)[Fe(CN)_(6)]`

Solution :van.t HOFF FACTOR of
`Al_(2)(SO_(4))_(3)to 2AL^(+3)+3SO_(4)^(-2)`
so n = 5
`K_(4)[Fe(CN)_(6)]to 4K^(+)+[Fe(CN)_(6)]^(-4)`
so `n=5 rArr i=n=5`


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