Which of the following is true regarding hydrogen bonding (select all that apply): Both molecules must contain an N, O or an F atom.

Hydrogen bonding is a physical bond holding two atoms close together.

Hydrogen bonding is an example of a London dispersion force.

Hydrogen bonding is an example of a dipole-dipole interaction.

Both molecules must contain a hydrogen bonded to either an N, O or F atom.

When comparing molecules of similar sizes, those that can hydrogen bond have a higher boiling point than those that are attracted solely by London dispersion forces.

the millers tale is the answer.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

answer7,570,82356 cubic centimeters;