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The attraction between water molecules to each other, arising from hydrogen bonding, is called:
Acohesion
Badhesion
Ccapillary action
Dpolarity
Answer & Solution
Correct answer: A. cohesion
1. Water molecules constantly form and break hydrogen bonds with neighbouring water molecules, producing surface tension and other effects.
2. The text states: "In cohesion, water molecules are attracted to each other (because of hydrogen bonding), keeping the molecules" together.
3. Adhesion instead describes attraction between water and a different substance, and capillary action is the resulting upward movement in narrow tubes -- both related, but not the same term as water-to-water attraction.
4. So water molecules attracting each other via hydrogen bonding is specifically called cohesion.
_Source: OpenStax Biology Ch 2 "The Chemical Foundation of Life", p.49 §2.2 | Water_
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