Question

Which salt shows maximum osmotic pressure in its 1 M solution?

• A. $ MgC{{l}_{2}} $
• B. $ {{(N{{H}_{4}})}_{3}}P{{O}_{4}} $
• C. $ N{{a}_{2}}S{{O}_{4}} $
• D. $ AgN{{O}_{3}} $

Answer 1

Answer: (B)

Osmotic pressure is a colligative property and colligative properties depends upon the number of particles in the solution. $ {{(N{{H}_{4}})}_{3}}P{{O}_{4}} $ will give maximum number of ions (4 ions) in solution, hence, its osmotic pressure will also be the maximum.