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Mathematics of Dipole Moment

9. Phenol dim...

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9. Phenol dimerises to benzene having van't hoff factor 0.54.what degree of association is

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α

' is degree of dimerisation of

{C H}_{3} C O O H

in benzene, then van't Hoff factor '

i

' for circulation of colligative properties is:

Q. Phenol associates in benzene to a certain extent in dimerisation reaction. A solution containing 0.02 kg of benzene has its freezing point depressed 0.69 K. Hence, degree of association of phenol dimerized will be :

[K_{f} (C_{6} H_{6}) = 5.12 K k g m o l^{- 1}]

Q. Vant Hoff factor (i) for dimerisation of benzoic acid insome solvent, assuming 30% degree of association

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Q. Benzoic acid undergoes dimerisation in benzene solution. The van 't Hoff factor

(i)

is related to the degree of association

^{'} x^{'}

of the acid as:

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