Which of the following representations of I (van't Hoff factor) is not correct ?

Options

A. `i= (" Observed colligative property ")/(" Expected colligative property")`
B. `i = ("Normal molecular mass ")/("Observed molecular mass")`
C. `i= ("Normal of molecules actually present ")/("Observed of molecules expected to be present ")`
D. `i = ("Taotal number of particles taken after association/dissociation")/("Total number of particles taken before association /dissociation ")`

Answer

D

Explanation

i = `(" Total number of particles after association/ dissociation")/(" Total number of particles before association/dissociation")`