What is the effect of water potential in a plant cell?

Which of the following statements is correct regarding water potential in a plant cell?

The correct expression for the water potential of a plasmolysed cell is:

If solution $A$ has $\Psi = -1000$ and $B$ has $\Psi = -2000$ are separated by a semipermeable membrane,which sentences are correct?
$(i)$ Solution $A$ has greater osmotic pressure
$(ii)$ Osmosis occurs toward $B$
$(iii)$ $A$ has more free water molecules
$(iv)$ At equilibrium,both will have the same water potential
$(v)$ Osmosis occurs toward $A$

Water potential is same as . . . . . . .

$0.5 \ M$ sucrose solution develops a pressure of $15 \ bars$ in an osmometer. Which of the following statements is wrong for such a solution?