1. For what reason is the meniscus of mercury in a test tube convex?

The cohesive forces of the mercury are stronger than the adhesive forces with the tube

The cohesive forces of the mercury are weaker than the adhesive forces with the tube

The adhesive forces of the mercury are stronger than the adhesive forces of the glass

The vapor pressure of the mercury is higher

The cohesive forces of the mercury and the adhesive forces with the glass are equal

2. Which of the following would be the least viscous (i.e., have the least resistance to flow)?

Octane at 110C

Octane at 15C

Mercury at 110C

Mercury at 15C

Water at 15C

3. Which of the following is exclusively an intramolecular force?

Covalent bonding

London forces

Dipole-dipole interactions

Hydrogen bonding

Ionic bonding