Non covalent interaction

Which one of the following elements is least likely to participate in a hydrogen bond?

• O

• N

• S

• F

Which one of the following represents the weakest interaction between two species?

• Hydrogen bond

• Disulfide bond

• Ionic bond

• Dispersion force

Which one of the following terms describes a positive and negative charge,

which are separated in space within a molecule?

• Salt bridge

• Polar bond

• Dipole

• van der Waals interaction

Polar molecules are most likely to be hydrophobic.

• False

• True

Non-polar molecules can contain polar bonds.

• True

• False

Keesom force is also known as

• Hydrogen bond

• dipole dipole interaction

• halogen bonding

• dipole- induced dipole interaction

In non covalent interaction valence shell electron sharing takes place.

• False

• True

Which one is not halogen element

• Bromine

• Fluorine

• Sulfur

• Astatine

which one is not a van der walls interaction

• Dipole-dipole interaction

• Hydrophobic interaction

• London dispersion forces

• Dipole-induced dipole interaction

Hydrophobic interaction take place because

• ΔS≥0

• ΔS=0

• ΔS0≤0

• none of the above