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AP EAMCET202021 Sep 2020Morning ShiftChemistryChemical Bonding and Molecular StructureActual

The number of hydrogen bonds formed by a water molecule at normal conditions is

Options

  1. A1
  2. B2
  3. C3
  4. D4

Correct answer

D. 4

Step-by-step solution

Water is unique because its oxygen atom has two lone pairs and two hydrogen atoms, meaning that the total number of bonds of a water molecule is up to four. The number of hydrogen bonds formed by a molecule of liquid water fluctuates with time and temperature. From liquid water simulations at (25^ C ), it was estimated that each water molecule participates in an average of 3.59 hydrogen bonds. Hence, correct option is (d).

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