WBJEE 2021 Physics and Chemistry Solved Paper

CATEGORY - II (Q71 to Q75)

Carry 2 marks each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ½ mark will be deducted.

Question : 73 of 80

Marks: +1, -0

The mole fraction of a solute in a binary solution is 0.1. At 298K, molarity of this solution is same as as its molality. Density of this solution at 298K is 2.0g cm−3. The ratio of molecular weights of the solute and the solvent (Msolute ∕Msolvent ) is

9
1
9
4.5
1
4.5

Validate

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