Understanding Covalent Compounds and VSEPR Theory

What is the primary difference between covalent and ionic compounds?

• Covalent compounds transfer electrons, while ionic compounds share electrons.

• Covalent compounds share electrons, while ionic compounds transfer electrons.

• Both covalent and ionic compounds transfer electrons.

• Both covalent and ionic compounds share electrons.

What does VSEPR stand for?

• Valence Shell Electron Pair Reduction

• Valence Shell Electron Pair Repulsion

• Valence Shell Electron Pair Rotation

• Valence Shell Electron Pair Reaction

According to VSEPR theory, what causes the formation of different molecular shapes?

• The sharing of protons

• The attraction between electrons

• The repulsion between electron pairs

• The transfer of electrons

Which shape is formed when a central atom is bonded to four other atoms with no lone pairs?

• Trigonal Pyramidal

• Tetrahedral

• Trigonal Planar

• Bent

What is the shape called when there are four atoms and no lone pairs on the central atom?

• Trigonal Pyramidal

• Linear

• Tetrahedral

• Trigonal Planar

How does the presence of a lone pair affect the shape of a trigonal pyramidal molecule?

• It flattens the shape.

• It pushes the atoms into a linear arrangement.

• It pushes the atoms down, forming a pyramid-like shape.

• It has no effect on the shape.

What shape is formed when a molecule has two atoms and lone pairs on the central atom?

• Linear

• Bent

• Trigonal Planar

• Tetrahedral

Which molecular shape is characterized by a straight line of atoms?

• Linear

• Tetrahedral

• Bent

• Trigonal Planar

What is the shape of a molecule with no lone pairs and three atoms bonded to the central atom?

• Trigonal Planar

• Tetrahedral

• Trigonal Pyramidal

• Bent

Which of the following is NOT a shape described by VSEPR theory?

• Tetrahedral

• Linear

• Hexagonal

• Trigonal Planar