Bonding and Intermolecular Forces

Which of the following best describes solid ethyl alcohol, C₂H₅OH?

• a network solid with covalent bonding

• a molecular solid with zero dipole moment

• a molecular solid with hydrogen bonding

• an ionic solid

The geometry of the SO₃ molecule is best described as

• trigonal planar

• trigonal pyramidal

• square pyramidal

• bent

Which of the following molecules has the shortest bond length?

• N₂

• O₂

• Cl₂

• Br₂

All of the following molecules have at least one double or triple bond EXCEPT

• CO₂

• CN^1-

• C₆H₆

• CH₂F2

Which of the following has a zero dipole moment?

• HCN

• NH₃

• NO₂

• PF₅

For which of the following molecules has resonance structures necessary to describe the bonding satisfactorily?

• H₂S

• SO₂

• CO₂

• OF₂

Of the following molecules, which has the largest dipole moment?

• CO

• CO₂

• O₂

• HF

Which of the following best describes the type of bonding in a sample of gold, Au_(s)?

• a lattice of positive and negative ions held together by electrostatic forces

• closely packed lattice with delocalized electrons throughout

• strong single covalent bonds with weak intermolecular forces

• macromolecules held together with strong polar bonds

The electron-dot structure (Lewis structure) for which of the following molecules would have two unshared pairs of electrons on the central atom?

• H₂S

• NH₃

• CH₄

• HCN

In C₂H₄, what is the hybridization of the carbon atoms?

• sp³d

• sp³

• sp²

• sp