Which of the following van der waals forces would have the most action among molecules of methane. ch4 a. diapole-diapole b. ion-diapole c. hydrogen-diapole d. london dispersion

- d. London dispersion

Explanations:- Dipole-dipole forces of attraction are present in polar covalent molecules. methane is not a polar molecule so the option is not correct.

Ion-dipole forces are present in ionic compounds. Methane is not an ionic compound so second option is also not correct.

Hydrogen bond is present in polar covalent molecules in which hydrogen is bonded to more electron negative(N, O or F)atom. So, third option is also not correct as the hydrogen is bonded to less electron negative carbon atom.

Methane is a non polar molecule and non polar molecules have weakest dispersion forces that are known as London dispersion forces.

So, the fourth option, d. London dispersion is the correct one.

fourth option: The molecules combine and eventually fall as precipitation.

In the cloud water is in the form of tiny, tiny drops. As the cloud gain more drops they will get in contact with each other, and due to the surface tension of water the drops will form bigger drops until the weight is too much and the drops fall as precipitation.