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Questions  

An aqueous solution is made by dissolving glucose C6H12O6 and urea NH2CONH2 in water. Mole ratio of glucose and water is 1:10. If the masses of glucose and urea are in 3:1 ratio, then correct statement(s) regarding the solution is/are :

 

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By Expert Faculty of Sri Chaitanya
a
The mole fraction of glucose in the solution is 111
b
The mole fraction of urea in the solution is 112
c
Molality of glucose in the solution is 256
d
Molality of urea in the solution is 509

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detailed solution

Correct option is B

 Mass      Ratio   Glucose                    Urea  3:1   

 Molar Ratio = 3180 160                                   1           1

Given molar ratio of glucose and H2O=1:10

Hence molar ratio of all three

 Glucose  Urea  H2O1: 1:    10 

 Mole fraction of glucose =nglucose nglucose +nurea +nH2O=11+1+10=112

And mglucose =murea =1180×1000


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