Recall that there are several types of intermolecular forces:
1. Ion-dipole interaction – occurs between an ion and a polar covalent compound
2. Hydrogen bonding – occurs in compounds where hydrogen is directly connected to an electronegative element such as N, O, or F
3. Dipole-dipole interaction – occurs between two polar covalent compounds
4. Induced-dipole interaction – occurs when a nonpolar compound interacts with a polar compound
5. Dispersion forces – occurs in all compounds. This is the primary intermolecular force exhibited by nonpolar compounds.
Which of the following pairs exhibit an ion-dipole interaction?
CH3OH and Na+
CH3CH2OH and H2O
Cl– and K+
CH3CH2CH2CH2CH3 and CH3CH2CH2CH2COOH
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