In this question, we are asked to determine which statement about water is not true. Let`s analyze each statement to identify the incorrect one.

Statement 1: Hydrogen bonds are present in liquid water.

This statement is true. Hydrogen bonds form between the hydrogen atoms of one water molecule and the oxygen atom of another water molecule, creating a network of intermolecular attractions.

Statement 2: Water has a high boiling point.

This statement is true. Water has a relatively high boiling point compared to other similar-sized molecules due to its strong hydrogen bonding. This property allows water to exist as a liquid over a wide range of temperatures, which is important for supporting life on Earth.

Statement 3: Water has a high heat of fusion.

This statement is true. The heat of fusion refers to the amount of heat energy required to convert a substance from a solid to a liquid state. Water has a high heat of fusion compared to many other substances, which means it requires a significant amount of energy to melt ice and convert it into liquid water.

Statement 4: Water is a non-polar molecule.

This statement is not true. Water is actually a polar molecule. The oxygen atom has a slightly negative charge, while the hydrogen atoms have slightly positive charges. This polarity allows