1.

Which compound corresponds vant Hoff factor (i) to be equal to 2 in dilute solution:A. `K_(2) SO_(4)`B. `NaHSO_(4)`C. SugarD. `MgSO_(4)`

Answer» Correct Answer - D
i=2 for `MgSO_(4)` as it will lead two ions on complete dissociation.
`MgSO_(4) hArr Mg^(2+) + SO_(4)^(-) - (2)`
`K_(2)SO_(4) hArr 2K^(+) + SO_(4)^(-) - (3)`
`NaHSO_(4) hArr Na^(+) + H^(+) + SO_(4)^(-) - (3)`
Sugar rarr sugar (Undissociated)


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