Out of (a) 200 ml of 2 M NaCl Soln. and (b) 200 ml of 1 M glucose Soln. which one has higher osmotic pressure?

Out of (a) 200 ml of 2 M NaCl Soln. and (b) 200 ml of 1 M glucose Soln. which one has higher osmotic pressure?
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Answer :

(a) 200 ml of 2 M NaCl Soln. NaCl is an electrolyte which dissolve to give ions. Glucose and urea are non electrolytes. Thus glucose has minimum conc. and hence minimum osmotic pressure.
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