pH of `0.1(M)BOH` (weal base)is found to be 12 .The solution at temperature T K will display an osmotic pressure equal to

Options

A. `0.01RT`
B. `0.01(RT)^(2)`
C. `0.11RT`
D. `1.1RT`

Answer

C

Explanation

`pH=12,pOh=14-12=2,[OH^(-)]=10^(-2)=0.1alpha` or `alpha=0.1`
`i=1+(n-1)alpha=1+(2-1)xx0.1=1.1`
`pi=iCRT=1.1xx0.1RT=0.11RT.`