Question

Which type of bond represents a weak chemical bond? a. hydrogen bond b. ionic bond C. covalent bond d. polar covalent bond

Short answer

a. hydrogen bond

Step-by-step solution

Recall the properties of different bond types

Hydrogen bonds are formed between molecules with polar covalent bonds, where a hydrogen atom is attracted to a more electronegative atom, like fluorine, oxygen, or nitrogen. Ionic bonds are formed between two ions of opposite charges as a result of the transfer of electrons. Covalent bonds are formed when two atoms share electrons, while polar covalent bonds are a type of covalent bond with an unequal sharing of electrons, resulting in a slightly charged molecule.

Compare bond strengths

Generally, ionic and covalent bonds are considered strong chemical bonds, while hydrogen bonds are considered weaker. This is because ionic and covalent bonds involve the transfer or sharing of electrons, whereas hydrogen bonds are primarily electrostatic attractions between two polar molecules. Polar covalent bonds are still considered strong, although they maintain some polarity.

Choose the correct option

Based on the comparison of bond strengths, we can conclude that the hydrogen bond represents a weak chemical bond. So, the correct answer is: a. hydrogen bond