Polarity of Molecules

What do we call the ability of an atom in a molecule to attract shared electrons?

• Electron affinity

• Electronegativity

• Ionization Energy

• Electromotive Force

Which of the following molecule is nonpolar?

• CO2

• HCl

• NaCl

• NH3

What is the electronegativity difference of C – O?

• 0

• 0.5

• 1.0

• 1.5

The electronegativity of elements as you move from top to bottom of the periodic table is increasing.

• True

• False

Fluorine has the greatest electronegativity while cesium has the least electronegativity value.

• True

• False

Water, with a bent molecular shape, is classified as a polar molecule.

• True

• False

Which property of molecules refers to the resistance of a liquid to flow?

• Solubility

• Surface tension

• Viscosity

• Volatility

Which of the following substances will most likely dissolve in water?

• Carbon Tetrachloride (CCl4)

• Hexane (C6H14)

• Oil

• Vinegar (CH3COOH)

Which of the following IMFA (Intermolecular Forces of Attraction) is considered as the strongest?

• Dipole-dipole

• Hydrogen bonding

• Ion-dipole

• London forces

What do we call the ability of the two liquids to combine or mix?

• Miscibility

• Solubility

• Viscosity

• Volatility