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Multiple Choice
Which property is exhibited by water but not by oil?
A
Cohesion due to hydrogen bonding
B
Lack of surface tension
C
Insolubility in water
D
Nonpolarity
Verified step by step guidance
1
Understand the properties of water: Water molecules exhibit cohesion due to hydrogen bonding, which is the attraction between the slightly positive hydrogen atom of one water molecule and the slightly negative oxygen atom of another water molecule.
Recognize that cohesion leads to surface tension: Surface tension is a result of cohesive forces between water molecules at the surface, allowing water to resist external forces and form droplets.
Compare water and oil: Oil is nonpolar and lacks hydrogen bonding. As a result, it does not exhibit cohesion or surface tension like water does.
Eliminate incorrect options: 'Lack of surface tension' is incorrect because water has surface tension. 'Insolubility in water' and 'Nonpolarity' are properties of oil, not water.
Conclude the correct answer: The property exhibited by water but not by oil is 'Cohesion due to hydrogen bonding.'