Grade 12 Molecular Structure Worksheet

Grade 12 Molecular Structure

Read each question carefully and provide detailed answers. Show all your work for calculations.

1. Which of the following molecules has a trigonal planar electron geometry and a bent molecular geometry?

2. What is the hybridization of the central atom in a molecule with a square planar geometry?

1. According to VSEPR theory, the geometry of electron domains around a central atom is determined by minimizing repulsion between  .

2. The presence of lone pairs on the central atom generally   the bond angles compared to ideal geometries.

3. Hybridization is the concept of mixing atomic orbitals to form new   orbitals suitable for the pairing of electrons to form chemical bonds.

1. Describe the steps involved in determining the molecular geometry of a molecule using VSEPR theory. Provide an example.

1. All molecules with polar bonds are polar molecules.

2. Hydrogen bonding is a stronger intermolecular force than dipole-dipole interactions.

Match the molecular geometry with its corresponding number of electron domains and lone pairs.

1. Compare and contrast the different types of intermolecular forces (London dispersion forces, dipole-dipole interactions, and hydrogen bonding). Discuss how each type affects the physical properties of substances, such as boiling point and solubility.