Chemistry for Biologists Hydrogen bonding

What is the term used to represent the polarity of a bond?

• Dipole-dipole

• Van der Waals

• Ionic

• Covalent

What is the Pauling Electronegativity scale used for?

• To classify the electronegativity of each atom

• To determine the bond length

• To calculate the bond energy

• To measure the boiling point

What is the approximate difference in electronegativity for a non-polar covalent bond?

• 0

• 0.35

• 0.89

• 2.23

What type of bond is formed between a hydrogen atom and an electronegative atom?

• Ionic bond

• Covalent bond

• Van der Waals bond

• Hydrogen bond

What is the main factor that determines the solubility of a solute in water?

• Hydrogen bonding

• Ionic bonding

• Dispersion interactions

• Dipole-dipole interactions

What is the driving force behind the self-assembly of non-polar molecules in water?

• Hydrogen bonding

• Ionic bonding

• Dispersion interactions

• Hydrophobic effect

What type of interaction is responsible for the aggregation of non-polar moieties in water?

• Hydrogen bonding

• Ionic bonding

• Dispersion interactions

• Dipole-dipole interactions

What is the term used to describe a molecule that contains both water-loving and oil-loving parts?

• Amphiphile

• Hydrophile

• Hydrophobe

• Lipid

What is the main driving force behind the folding of proteins?

• Hydrogen bonding

• Ionic bonding

• Dispersion interactions

• Hydrophobic effect

What is the main factor that determines the boiling point of a substance?

• Hydrogen bonding

• Ionic bonding

• Dispersion interactions

• Dipole-dipole interactions