(b) Circle the molecules with zero dipole moment. Me. Me 8} CI F

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The image presents a chemistry exercise with the instruction: "(b) Circle the molecules with zero dipole moment."

Below the instruction are six structural diagrams of different molecules:

1. A benzene ring with two chlorine (Cl) atoms and two methyl (Me) groups substituents at alternating positions.

2. A cyclohexane ring with two chlorine (Cl) atoms and two fluorine (F) atoms as substituents in a trans configuration.

3. A linear molecule with two chlorine (Cl) atoms and one methyl group, showing three groups arranged around a central carbon.

4. A cyclohexane ring with two chlorine (Cl) atoms and two fluorine (F) atoms, similar to the second molecule but in a different configuration.

5. A small square cyclobutane ring with chlorine (Cl) atoms on opposite corners.

6. A five-membered ring with two oxygen (O) atoms double-bonded to the ring, resembling a cyclic anhydride.

The task is to identify and circle the molecules which have a zero dipole moment.
Transcribed Image Text:The image presents a chemistry exercise with the instruction: "(b) Circle the molecules with zero dipole moment." Below the instruction are six structural diagrams of different molecules: 1. A benzene ring with two chlorine (Cl) atoms and two methyl (Me) groups substituents at alternating positions. 2. A cyclohexane ring with two chlorine (Cl) atoms and two fluorine (F) atoms as substituents in a trans configuration. 3. A linear molecule with two chlorine (Cl) atoms and one methyl group, showing three groups arranged around a central carbon. 4. A cyclohexane ring with two chlorine (Cl) atoms and two fluorine (F) atoms, similar to the second molecule but in a different configuration. 5. A small square cyclobutane ring with chlorine (Cl) atoms on opposite corners. 6. A five-membered ring with two oxygen (O) atoms double-bonded to the ring, resembling a cyclic anhydride. The task is to identify and circle the molecules which have a zero dipole moment.
Expert Solution
Step 1: basics of dipole moment

Dipole moment vector develops in the molecule due to the electronegativity difference between the elements.

The dipole moment vector is represented from less electronegative atom to a more electronegative atom.

If the atoms are same and they are at anti position then the dipole moment vector cancels out but when they lie in same direction then it adds up.

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