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Boiling point of non volatile solution A and B are same. Mass percent of sol A is 2% and mass percent of sol B is 3%. What is the ratio of their Mol. mass?(a) MA = 4MB (b) MB = 4MA (c) 3MA = 2MB(d) 3MB = 2MA |
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Answer» Correct option is (c) 3MA = 2MB (ΔTb)A = (ΔTb)B Kb mA = Kb mB 2/MA x 98 = 3/MB x 97 2MB = 3MA |
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