dear sir please guide me





 

Dear student,The correct answer is 4. It is because initially, the water content present inside the leaf was 0.55 mL. Plasmolysis can occur if the leaf is kept in a solution having greater osmotic concentration than that of leaf. If leaf is kept in a solution having water concentration 0.3 mL, then water from the leaf will enter the solution, leading to plasmolysis of leaf. In all other given options, plasmolysis cannot occur. Instead, water will move from solution towards leaf making it turgid.......hope it helps,Regards.