Can someone help me with questions 5 & 6. Thank you! Complete For StadyNotes!1. T F The change in resistance to flow with temperature that many liquids exhibit is achemical property which is based on intermolecular attractive forces.2. T F The basic building block of a crystalline ionic compound is called the unit cell.3. T F In order of increasing intermolecular attractive forces: CCL4 < SiCl4 < GeCl4 < SnCl44. For a series of small molecules of comparable molecular weight, which one of the followingchoices lists the intermolecular forces in the correct increasing order?(WEAKEST TO STRONGEST)a. hydrogen bonds < dipole-dipole forces < London forcesb. dipole-dipole forces < hydrogen bonds < London forcesc. London forces

Intermolecular forces are the forces existing between the molecules such as hydrogen bonding, Dispersion forces and Dipole-dipole interactions. Among the intermolecular forces, hydrogen bonding is the strongest force and Dispersion forces are the weakest.5. The hydrogen bonding exists between the hydrogen attached to electronegative atoms such as fluorine, oxygen and nitrogen. CH3-CH2-Br does not contain any of the three electronegative atoms mentioned above and the hydrogen is attached to carbon atom rather than with electronegative atoms (F, N, O). Therefore, hydrogen bonding does not occur. Among the given options, other compounds have nitrogen or oxygen atoms, which is attached to hydrogen atom. Hence, hydrogen bonding can occur. Therefore, the correct option is a, CH3-CH2-Br.6. Among the given options, CH3-CH2-OH has the strongest intermolecular forces because of the presence of hydrogen bonding between the molecules of CH3-CH2-OH. Other molecules in the options do not have hydrogen bonding. Hence, CH3-CH2-OH has the strongest intermolecular forces. Therefore, the correct option is b, CH3-CH2-O-H.