The substance A when dissolved in solvent B shows the molecular mass corresponding to `A_(3)`. The vant Hoffs factor will be:

Options

A. 1
B. 2
C. 3
D. `1//3`

Answer

D

Explanation

`{:(3A ,rarr ,A_(3)),(1-alpha,,alpha//3):}`
`i = 1 - alpha +alpha//3 alpha 100%`
`= 1 - 1 +(1)/(3) =(1)/(3)`