The property of water molecule which results in hydrogen bonding is
Correct answer: A. Polarity
- A. Polarity
- B. Cohesion
- C. Heat of vaporization
- D. Specific heat capacity
Explanation
The correct answer is polarity. Water molecules have a polar structure, meaning there is an uneven distribution of electron density. The oxygen atom has a partial negative charge, while the hydrogen atoms have partial positive charges. This polarity allows water molecules to form hydrogen bonds with each other, as the positively charged hydrogen atoms of one molecule are attracted to the negatively charged oxygen atoms of another. The other options describe properties or phenomena that result from hydrogen bonding but do not explain why hydrogen bonds form in the first place.
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About Biological Importance of Water
Water supports life through its polarity, hydrogen bonding and ability to dissolve ionic and polar substances. Its high specific heat, heat of vaporization, cohesion, adhesion and incompressibility help regulate temperature, transport materials and maintain structure, while hydrolysis and osmosis depend directly on water.
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