HW Question

[Brandon Gruender 3F]

Select which intermolecular forces of attraction are present between CH3CHO molecules.

does anyone know what they are?

[BrittneyMyint1D]

The molecule would have London dispersion forces and dipole dipole. Dispersion forces are in all molecules. Since there is an oxygen in the molecule with C and H, this makes the molecule polar, so there would be dipole dipole intermolecular forces. Hydrogen forces would not be present because the hydrogen bonds would form if O-H, F-H, or N-H bonds were present, which is not the case here because the oxygen is bonded to carbon. Hope this helps!

[Meghan Krushena 2E]

The answer would be London dispersion forces and dipole-dipole forces only due to the London dispersion forces always being present, and the polarity of the molecule caused by C and H which means dipole-dipole forces are present.

[joshtully]

The answer would be London dispersion force and dipole-dipole.

[Thomas Gimeno]

London dispersion forces are always present and there would also be a dipole-dipole interaction due to the partial negative charge of the O in the OH group.