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The fraction of phenol dimerised in benz...

The fraction of phenol dimerised in benzene if 20 g of phenol in 1 kg benzene exhibits a freezing point depression of 0.69 K. (`K_f`benzene) =5.12 kkg/mol),(MW of phenol=94)

A

0.74

B

0.37

C

0.46

D

0.64

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