Assuming each salt to be `90%` dissociated which of the following will have the highest osmotic pressure?

Options

A. Decimolar `"Al"_(2)("SO"_(4))_(3)`
B. Decimolar `"BaCl"_(2)`
C. Decimolar`"Na"_(2)"SO"_(4)`
D. A solution obtained by mixing equal volumes of (b) and (c

Answer

A

Explanation

For `"Al"_(2)("SO"_(4))_(3),"n"=5`
`therefore"if"'alpha'"is same,"" Al"_(2)("SO"_(4))_(3) " soln"`
Highest value of 'I'
`therefore` Elevation is boiling point is maximum for `"Al"_(2)("SO"_(4))_(3)` soln.
`"Al"_(2)("SO"_(4))_(3)` solution has highest boiling point.