The osmotic pressure of equimolar solutions of urea, ${\text{BaCl}}_{\text{2}}$ and ${\text{AlCl}}_{\text{3}}$ will be in the order of

• A

  ${\text{AlCl}}_{\text{3}}\text{>}\text{Urea}\text{>}{\text{BaCl}}_{\text{2}}$
• B

  $\text{Urea}\text{>}{\text{BaCl}}_{\text{2}}\text{>}{\text{AlCl}}_{\text{3}}$
• Correct answer
  C

  $AlC{l}_3>BaC{l}_2>Urea$
• D

  ${\text{BaCl}}_{\text{2}}\text{>}{\text{AlCl}}_{\text{3}}\text{>}\text{Urea}$

Hence, the correct answer is option: 'C'.