1.

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

Answer»

Correct option is (c) 3MA = 2MB

(ΔTb)= (ΔTb)B

Kb mA = Kb mB

2/Mx 98 = 3/Mx 97 

2M= 3MA



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