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The electrolyte solutions show abnormal ...

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

A

Dimer

B

Monomer

C

Tetramer

D

Trimer

Text Solution

Verified by Experts

The correct Answer is:
A
Molecular mass of benzoic acid =154
Molecular mass of associated molecule =244
`:. N=244//154 =1.6 ~~ 2`
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