The number of hydrogen bonds formed by a water molecule at normal conditions is
The number of hydrogen bonds formed by a water molecule at normal conditions is
1
2
3
4
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 \(25^{\circ} \mathrm{C}\), it was estimated that each water molecule participates in an average of 3.59 hydrogen bonds.
Hence, correct option is (d).