MHT CET Chemistry question

0.5 M solution of urea is isotonic with

(A)0.1 M NaCl solution
(B)0.5 M sugar solutionCorrect
(C)0.5 M solution
(D)0.5 M solution benzoic acid in benzene

Answer: (B)

Solution

Isotonic solutions have the same effective particle concentration; urea and sugar are both non-electrolytes, so 0.5 M sugar matches; NaCl (0.1 M gives 0.2 M

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Question ID VK-061106