JEE Main Chemistry question

Which has minimum osmotic pressure? [DCE 2005]

(A)200 mL of 2 M NaCl solution
(B)200 mL of 2 M glucose solutionCorrect
(C)200 mL of 2 M urea solutionCorrect
(D)All have same osmotic pressure

Answer: (B),(C)

Solution

Osmotic pressure is proportional to the effective particle concentration, . NaCl () gives M of particles, while both glucose and urea are non-electrolytes (), each

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Question ID VK-143088