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The freezing point of solution containin...

The freezing point of solution containing `0.2 g` of acetic acid in `20.0 g` of benzene is lowered by `0.45^(@)C`. Calculate the degree of association of acetic acid in benzene.
`(K_(f)=5.12 K^(@) mol^(-1) kg^(-1))`

A

`94.5%`

B

`54.9%`

C

`78.2%`

D

`100%`

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The correct Answer is:
A
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