The electrolyte solutions show abnormal colligative porperties.To account for this effect we define a quantity called the Van't Hoff factor given by
`i=("Actual number of particles in solution after dissociation")/("Number of formula units initially dissolved in solution")`
`i=1 ("for non-electrolytes")`
`igt1 ("for electrolytes, undergoing dissociation")`
`ilt1 ("for solutes, undergoing association")`
Answer the following questions:
A solution of benzoic acid is dissolved in benzene such that it undergoes molecular association and its molar mass apporaches `244`. The benzoic molecules will exist as

Options

A. Dimer
B. Monomer
C. Tetramer
D. Trimer

Answer

A

Explanation

Molecular mass of benzoic acid =154
Molecular mass of associated molecule =244
`:. N=244//154 =1.6 ~~ 2`