Question

18. What is the strongest intermolecular force (IMF) found in a sample of thousands of C₂H₆ molecules?

London          b. dipole dipole          c. nonpolar          d. H bond force        e. polar

19. What is the strongest intermolecular force (IMF) found in a sample of thousands of HBr molecules?

a.London          b. dipole dipole          c. nonpolar          d. H bond force        e. polar

20. What is the strongest intermolecular force (IMF) found in a sample of thousands of He atoms?

a. London          b. dipole dipole          c. nonpolar          d. H bond force        e. polar

Answer 1

18) a. london forces (this force is present between the atoms or molecules , this force is caused by the fluctuation in the electron distribution with in the molecules or atoms)

19) b. dipole-dipole forces (dipole-dipole forces are exists in all molecules which are polar.polar molecules have permanent dipoles which interact with the permanent dipoles of neighbouring molecules.The positive end dipole is attached to the negative end dipole, this attraction is called dipole-dipole attraction)

20) a. london forces (this force is present between the atoms or molecules , this force is caused by the fluctuation in the electron distribution with in the molecules or atoms)