Relative loweringof vapour pressure of a dilute solution is `0.2`. What is the mole fraction of non-volatile solute ?
A. `0.8`
B. `0.5`
C. `0.3`
D. `0.2`
A. `0.8`
B. `0.5`
C. `0.3`
D. `0.2`
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Correct Answer – D