INTERMOLECULAR - MULTIPLE CHOICE

How many types of intermolecular forces are there?

• 1

• 2

• 3

• 6

• 4

Where do the dipole-dipole forces occur?

• In polar molecules

• In nonpolar molecules

• Both polar and nonpolar molecules

• When there are 2 or more molecules that are unattractive to other particle charges.

Where does Hydrogen bonding occur?

• Inside the molecules

• Between any 2 molecules

• Between molecules in which a hydrogen atom is covalently bonded

• All of the above

What is the characteristic of oxygen, nitrogen and fluorine atoms?

• Big and electrical

• Small and water-absorbing properties

• Small and electrical

• Small and electronegative

What is one of the 2 key requirements for hydrogen bonding?

• A hydrogen atom ionic bonded to a metal and metal exchange electrons atoms

• A lone pair of electrons on the nitrogen, oxygen or fluorine atoms of neighboring molecules

• A hydrogen atom covalently bonded to an oxygen, nitrogen or chlorine atom

• Can be ionic bonded or covalently bonded to metal or non-metal atoms

Why does the ice float on the water?

• Because it less dense than water

• Because it denser than water

• Because its properties are float on water even though its dense is bigger or smaller than water

• A & C are correct

Dispersion is the strongest or the weakest intermolecular forces?

• Strongest

• Weaknest

What is the strength of dispersion depend on?

• The electronegative of atoms

• The density of atoms

• The solubility of molecules

• The size of the molecules

Dispersion stronger between…

• Smaller molecules

• Equally molecules

• Larger molecules

Why is the hydrogen atom partial positively charged in the hydrogen bonding?

• Hydrogen bonding is a special form of dispersion force

• The hydrogen is attached directly to a highly electronegative atom

• Hydrogen bonding is a relatively strong intermolecular bond

• All of the above