1.

Benzoic acid undergoes dimerisation in benzene solution, the vat't Hoff factor 'I' is related to the degree of association 'x' of the acid as

Answer»

i=(1-X)
i=(1+x)
i=(1-x/2)
i=(1+x/2)

SOLUTION :`2C_(6)H_(5)COOH rarr (C_(6)H_(5)COOH)_(2)`
Before asso. 1 MOL
After asso. `1 - x x/2`
total`=1 - x + x/2` = `1- x/2`
`i=(1-x//2)/1` "or" `i=1 - x/2`


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