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  4. Acetic acid exists in benzene solution in the dimeric form. In an actual experiment the vant Hoff factor was found to be 0.52. Then the degree of dissociation of acetic acid is

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Q. Acetic acid exists in benzene solution in the dimeric form. In an actual experiment the vant Hoff factor was found to be $0.52$. Then the degree of dissociation of acetic acid is

Uttarkhand PMTUttarkhand PMT 2007

Solution:

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$ i=1-\frac{\alpha }{2} $ or $ \alpha =2(1-i) $ $ =2(1-0.52) $
$ =0.96 $