Question

CH, CH, CHỌH CHF H0 Dispersion forces, dipole-dipole forces, and hydrogen bonding Dispersion forces and dipole-dipole forces Dispersion forces only

Answer 1

dispersion forces only -- CH4 , C3H8

The forces which mediate the interaction between the molecules are known as intermolecular forces. Intermolecular forces are of 3 types :- 1. Hydrogen bonding -- When hydrogen is bonded to a highly elecrtonegative atom like Flourine , oxygen or nitrogen then it forms a weak bond known as hydrogen bond. Dipole dipole forces -- In polar molecules negative end of one molecule attracts the positive end of the other molecule. It is called Dipole forces. It is present only in polar molecules. Dispersion forces -- It arises when electrons in an atom occupies positions that results in temporary Dipoles. It is present in nonpolar molecule.

Dispersion forces and dipole-dipole forces -- CH3F

Dispersion forces , dipole-dipole forces and Hydrogen bonding = H2O , C2H5OH