What will be the ratio of any colligative propertiesof 1.0 m aqueous solutions of NaCl,`Na_(2)SO_(4)` and `K_(4) [Fe(CN)_(6)]` [Assume that solute complete (100%) dissociates in the solution ]

Options

A. `2:3:4`
B. `1:2:4`
C. `2:3:5`
D. `1:3:5`

Answer

C

Explanation

`NaCl rarr Na^(+) + Cl^(-) ` ( 2 particles )
`Na_(2) SO_(4) rarr 2Na^(+) +SO_(4)^(--) ` ( 3 particles )
`K_(4) [Fe (CN)_(6) rarr 4K^(+) +[Fe(CN)_(6) ]^(-) ` ( 5 particles )
Ratio of colligative properties `:2:3:5`