SolutionMedium
Question
Phenol dimerizes in benzene. If the observed molecular mass of phenol in solution is 120, then its degree of dimerization is
Options
A.0.600
B.0.433
C.0.277
D.0.866
Solution
$\alpha = \frac{M_{o} - M}{(n - 1).M} = \frac{94 - 120}{\left( \frac{1}{2} - 1 \right) \times 120} = 0.433$
$\left\lbrack \text{For }2A \rightleftharpoons A_{2},n = \frac{1}{2} \right\rbrack$
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