JEE Main Chemistry question

Chemistry Solutions JEE Main

Consider the following aqueous solutions and assume 100% ionisation in electrolytes. I. 0.1 m urea; II. 0.04 m; III. 0.05 m; IV. 0.005 m NaCl. The correct statement regarding the above solutions is [Guj CET 2008]

(A)Freezing point will be lowest for solution I
(B)Freezing point will be highest for solution IVCorrect
(C)Boiling point will be highest for solution IV
(D)Vapour pressure will be highest for solution II

Answer: (B)

Solution

Solutions II and III are printed in the source without a named solute, so their dissociation behaviour (and hence their effective particle

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Question ID VK-143091