AP BIOLOGY

Detailed explanation-1: -Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions. In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules.

Detailed explanation-2: -Out of the IMFA available for water molecule, the Hydrogen Bonding is the strongest attractive force that act for water molecules. The Hydrogen Bonding is the strongest IMFA, therefore, the statement in the problem is true.

Detailed explanation-3: -Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.

Detailed explanation-4: -Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.

Detailed explanation-5: -Intermolecular forces are the attractions between molecules, which determine many of the physical properties of a substance.