Question

Liquid which evaporates more quickly is…………………
A. Spirit
B. Water
C. Grease
D. Oil

Answer 1

Hint: More volatile liquid will evaporate more easily and volatility of a substance totally depends on the intermolecular attraction forces working between the molecules of the liquid. Stronger the intermolecular forces, higher the boiling point of the liquid is and less volatile it will be, therefore will take more time to get evaporated.

Complete step by step answer:
Spirit: It is actually ethanol and we know that hydrogen bonding does exist in ethanol but extent of hydrogen bonding is lesser in ethanol as compared to water, therefore boiling point of ethanol is less than water and it evaporates more quickly.
Water: A very important compound used as solvent. Hydrogen does exist in it that gives it a boiling point of 373.15K and makes it less volatile than alcohol.
Grease: Grease consists of base oil, thickener and additives. Here the various types of grease will be described, which means the fully formulated grease and the various components. The boiling points of different types of grease are usually higher than 400K which makes it less volatile than water. So it will not evaporate quickly.
Oil: They are generally long chain carbon compounds that have high boiling points as compared to water. Therefore it will not evaporate quickly.

So the correct answer for this question is Option (A).

Additional information:
Pure ethanol is a flammable, colorless liquid that has a slight odor. It burns with a smokeless blue flame that is not always visible in normal light.

Note: When hydrogen is attached to a highly electronegative atom like fluorine, oxygen or nitrogen, because of the electronegativity difference, hydrogen has partial positive charge and other high electronegativity atoms have partial negative. Now because of this hydrogen creates a weak bond with the partially negatively charged atom of a nearby molecule and this weak bond is called hydrogen bonding.