The osmotic pressure of equimolar solutions of BaCl2, NaCl, and glucose follow the order
BaCl2 > NaCl > Glucose
Glucose > NaCl > BaCl2
NaCl > BaCl2> Glucose
NaCl > Glucose > BaCl2
osmotic pressure is a colligative property, and more the number of particles more the osmotic pressure.
π=iCRT
Hence, BaCl2>NaCl>Glucose