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Pure benzene freezes t 5.3^(@)C. A solut...

Pure benzene freezes t `5.3^(@)C`. A solution of 0.223 g of phenylacetic acid `(C_(6)H_(5)CH_(2)COOH)` I 4.4 g of benzene ` (K_(f) = 5.12 Kkg mol^(-1))` freezes at `4.47^(@)C`. From the observation one can conclude that :

A

phenylacetic acid exists as such in benzene

B

phenylacetic acid undergoes partial ionization in benzene

C

phenylacetic acid undergoes complete ionization in benzene

D

phenylacetic acid dimerises in benzene

Text Solution

Verified by Experts

The correct Answer is:
D
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