VSEPR Quiz

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons

• Inner shell electrons

• Mobile Electrons

• Electrons closest to the nucleus

2 bonded atoms and 0 lone pairs

• linear

• trigonal planar

• bent

• tetrahedral

• trigonal pyramidal

3 atoms bonded and 0 lone pairs

• linear

• trigonal planar

• bent

• tetrahedral

• trigonal pyramidal

*

• linear

• trigonal planar

• trigonal pyramid

• bent of angular

What is the bond angle in a trigonal planar molecule?

• 90°

• 109.5°

• 120°

• 180°

Which molecular geometry is formed by two bonding pairs and two lone pairs of electrons?

• Linear

• Trigonal planar

• Tetrahedral

• Bent

In a trigonal pyramidal molecule, how many bonding pairs and lone pairs are there?

• 3 bonding pairs, 1 lone pair

• 2 bonding pairs, 2 lone pairs

• 4 bonding pairs, 0 lone pairs

• 3 bonding pairs, 0 lone pairs

In VSEPR theory, what do lone pairs of electrons do to the shape of a molecule?

• They do not affect the shape.

• They make the molecule larger.

• They push bonding pairs closer together.

• They pull bonding pairs further apart.

Which of the following is NOT a factor that VSEPR theory considers to predict the shape of a molecule?

• The number of lone pairs on the central atom

• The number of bonding pairs on the central atom

• The weight of the atoms in the molecule

• The repulsion between electron pairs

What molecular geometry does a molecule have if it has three bonding pairs and one lone pair of electrons?

• Linear

• Trigonal planar

• Tetrahedral

• Trigonal pyramidal