a liquid A has higher vapour pressure than liquid Bwhich liquid will have lower boiling point and why ?

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Solution

Boiling point is the temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure.Therefore the liquid which has higher vapour pressure need less heat to be supplied to make it's vapour pressure equal to the atmospheric pressure since molecules possess escaping tendency and will boil at lower temperature.

Therefore liquid A has lower boiling point.

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