What will be the value of van.t Hoff factor for a solution of benzoic acid dissolved in benzene?
(i) 1.5
(ii) 0.5
(iii) 1
(iv) 2

Explanation

(ii) When benzoic acid is dissolved in benzene, it udergoes dimerisation. Therefore, the value of van.t Hoff factor is `(1)/(2)` or 0.5.