An electrolyte A gives 3 ions and B is a non-electrolyte. If 0.1 M solution of B produces an osmotic pressure P, then 0.05 M solution of A will produce an osmotic pressure, assuming that the electrolyte is completely ionised :

Options

A. plot of `1//p_("total")` vs `y_(A)` is linear ( mol fraction of A in vapour phase).
B. `1.5p`
C. `0.5p`
D. `0.75p`

Answer

B

Explanation

For two solutions A and B
`(pi(A))/(pi(B)) = (c(A))/(c(B))`
`c(B) = 0.1 M, c(A) = 0.05 xx 3 = 0 .15 M`
`(pi(A))/(p) = (0.15)/(0.1) = 1.5`
`therfore " " pi(A) = 1.5 p`