Question

Identify the compound that does not have dipole-dipole forces as its strongest force

a.cci3
b.ch3och3
c.co2
d.ch2f2
e.ch3br

Answer 1

The compound that does not have dipole-dipole forces as its strongest intermolecular force among the options provided is carbon dioxide (CO2), which relies mainly on London dispersion forces due to its nonpolar, linear geometry.Option C is the correct answer.

Step-by-step explanation:

To identify the compound that does not have dipole-dipole forces as its strongest intermolecular force, let us examine each given compound:

1. CCl3 (Given in the question, but no chemical with this formula exists. Assuming the chemical meant is CCl4, carbon tetrachloride), which is nonpolar and exhibits only London dispersion forces as its primary intermolecular forces.
2. CH3OCH3 (dimethyl ether) is a polar molecule, and thus exhibits dipole-dipole attractions.
3. CO2 (carbon dioxide) is a linear molecule and is nonpolar despite the polar bonds, due to its geometry causing the dipole moments to cancel each other out. This means it mainly exhibits London dispersion forces.
4. CH2F2 (difluoromethane) is a polar molecule due to the presence of polar C-F bonds that do not cancel out, leading to dipole-dipole interactions.
5. CH3Br (methyl bromide) is polar because of the presence of the polar C-Br bond, resulting in dipole-dipole forces.

Based on this analysis, the compound among the options provided that would not have dipole-dipole forces as its strongest intermolecular force is carbon dioxide (CO2).