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)

${{(N{{H}_{4}})}_{3}}P{{O}_{4}}$

Answer 2

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.