Question

Water potential ($\psi$) of a solution is always

• A. + Ve
• B. - Ve
• C. Zero
• D. Variable

Answer 1

Answer: (B)

- Ve

Water potential is the chemical potential of water and depends on the number of water molecules. When a solute has been dissolved in water, there is a relative decrease in number of solvent or water molecules. Hence, water potential decreases. The water potential of pure water has been fixed as zero. The water potential of all solutions is negative.