1.

Which of the following aqueous solution has same osmotic pressure ?(i) 0.1 M NaCl solution(ii) 0.1 M glucose solution(iii)0.6 gm urea in 100 mL solution(iv) 1.0 gm non - volatile solute (x) in 50 mL solution. (Molecular Mass of x = 200)

Answer»

(i), (ii), (iii)
(ii), (iii), (iv)
(i), (ii), (iv)
(i), (iii), (iv)

SOLUTION :(ii) 0.1 M glucose `= pi=0.1` RT
(iii) `pi = (n)/(V)RT = ((0.6)/(60)xx1000)/(100)RT = 0.1 RT`
(iv)`pi=((0.1)/(200))/(50)xx1000 RT = 0.1 RT`


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