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Which has minimum osmotic pressure ?...

Which has minimum osmotic pressure ?

A

`200 mL` of `2M NaCI` solution

B

`200 mL` of `1M` glucose solution

C

`200 mL` of `2M` urea solution

D

all have same

Text Solution

Verified by Experts

The correct Answer is:
B
NaCl is an electrolyte which dissociates to give ions. Concentration of ions in a 2M NaCl solution = 4M. Glucose and urea are non-electrolytes. Thus glucose has minimum concentration and hence minimum osmotic pressure.
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