At`25^(@)C`the highest osmotic pressure is exhibited by `0.1M` solution of

Options

A. Urea
B. glucose
C. `CaCl_(2)`
D. KCl

Answer

3

Explanation

According to modification
`pi=iCRT`
Thus at a given temperature and for a given concentration, osmotic pressure `(pi)` is directly proportional to the value of van't hoff factor (i). Thus, highest osmotic pressure will correspond to maximum value of `i`.
`"Urea" overset(H_(2)O)(rarr) "No dissociation ionization" (i=0)`
`Glucose overset(H_(2)O)(rarr) "Neither dissociation nor association" (i=0) `
`CaCl_(2)overset(H_(2)O)(rarr) Ca^(2+)+2Cl^(-)(i=3)`
`KCloverset(H_(2)O)(rarr) K^(+)+Cl^(-) (i=2)`