Which molecule ( KI or LiF ) has the higher boiling point?

Select the single most important reason below to justify your choice should have the higher melting point

Both molecules are nonpolar but the higher melting includes hydrogen bonding

Both molecules are nonpolar but the higher melting is more polarizable

The higher melting molecule is polar and the other is not

The lower melting molecule is polar and the other is not

The higher melting molecule has smaller vander Waals forces than the lower melting

The higher melting molecule has greater vander Waals forces than the lower melting

The higher melting molecule is ionic and the other is not

The lower melting molecule is ionic and the other is not

The higher melting molecule has hydrogen bonds and the other does not

The lower melting molecule has hydrogen bonds and the other does not

Both molecules are ionic but the higher melting has a larger cohesive energy

Both molecules are ionic but the lower melting has a larger cohesive energy

The higher melting molecule is ionic and the other is not.

Ionic bonds are stronger than hydrogen bonds

The lower melting molecule is ionic and the other is not.

Ionic bonds are weaker than hydrogen bonds The higher boiling molecule is ionic and the other is not.

Ionic bonds are stronger than vander Waals forces The lower boiling molecule is ionic and the other is not.

Ionic bonds are weaker than vander Waals forces

2 answers

LiF
"Both molecules are ionic but the higher melting point has a larger cohesive energy"