Multiple Choice
Which intermolecular force in liquids is primarily responsible for causing surface tension?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
Multiple Choice
Which substance below exhibits dipole-dipole intermolecular forces?
A
CO2
B
CCl4
C
N2
D
CH3Cl
Verified step by step guidance1
Identify the molecular geometry and polarity of each substance listed: CO2, CCl4, N2, and CH3Cl.
Recall that dipole-dipole intermolecular forces occur between polar molecules, which have a permanent dipole moment due to uneven distribution of electron density.
Analyze CO2: It is a linear molecule with two polar C=O bonds arranged symmetrically, resulting in a nonpolar molecule overall, so it does not exhibit dipole-dipole forces.
Analyze CCl4: It has a tetrahedral geometry with four identical C-Cl bonds symmetrically arranged, making the molecule nonpolar and thus lacking dipole-dipole forces.
Analyze N2: It is a diatomic molecule with identical atoms, making it nonpolar and only subject to London dispersion forces, not dipole-dipole forces.
Analyze CH3Cl: It has a tetrahedral shape but with different atoms (three H and one Cl), creating an uneven charge distribution and a permanent dipole moment, so it exhibits dipole-dipole intermolecular forces.
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