H2CO; H2CO is polar, whereas CH3CH3 is nonpolar. H2CO has dipole forces in addition to LD forces. CH3CH3 only has LD forces.
Yes, also London dispersion force
Yes; all compounds possess London dispersion forces between their molecules, because all compounds contain electrons. However, in the case of H2CO, this will not be the strongest intermolecular force. The strongest will be dipole-dipole interaction, because H2CO is a polar molecule.
sp2
Formaldehyde H2CO
Dipole-dipole interactions, and London dispersion interactions
Yes, also London dispersion force
Yes; all compounds possess London dispersion forces between their molecules, because all compounds contain electrons. However, in the case of H2CO, this will not be the strongest intermolecular force. The strongest will be dipole-dipole interaction, because H2CO is a polar molecule.
sp2
Formaldehyde
H2CO
sp2
Formaldehyde H2CO
Dipole-dipole interactions, and London dispersion interactions
POLAR
Yes
Trigonal planar
H2co