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InterviewSolution
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Which one of the following is an isotonic pair of solution ?A. 0.15 M NaCI and `0.1 M Na_(2)SO_(4)`B. 0.2 M urea and 0.1 M sugarC. `0.1 M BaCI_(2)` and `0.1 M NH_(4)CI`D. `0.2 M MgSO_(4)` and `0.1 M NH_(4)CI` |
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Answer» Correct Answer - A `NaCI rarr Na^(+) + CI^(-)` 0.15 NaCI contains `0.15 xx 2 = 0.3 ` M particles `NaSO_(4) rarr 2Na^(+) + SO_(4)^(2-)` `:. 0.1 M Na_(2)SO_(4)` contains `0.1 xx 3 = 0.3` M particles :. They are isotonic solutions. |
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