VSEPR

VSEPR theory is to

• determine the number of bonding and lone pairs electrons

• determine the number of ECC

• determine the shape and geometry of molecule

• determine the lewis structure of molecule

What molecular shape is the structure shown here? (BCl₃)

• linear

• trigonal planar

• tetrahedral

• trigonal pyramidal

Tags

NGSS.HS-PS1-3

What molecular shape is the structure shown here? (H₂O)

• tetrahedral

• trigonal planar

• bent

• trigonal pyramidal

What geometry will this molecule have?

• bent

• tetrahedral

• linear

• pyramidal

Which molecular geometry has four bonding pairs and no lone pairs of electrons?

• Linear

• Trigonal planar

• Tetrahedral

• Trigonal pyramidal

Tags

NGSS.HS-PS1-3

What is the bond angle in a trigonal planar molecule?

• 90°

• 109.5°

• 120°

• 180°

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

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

• Linear

• Trigonal planar

• Tetrahedral

• Bent

Tags

NGSS.HS-PS2-6

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.

What is the angle between the bonding pairs in a tetrahedral molecule?

• 90°

• 109.5°

• 120°

• 180°