Ion-Induced Dipole Interactions

The video tutorial covers ion-dipole and ion-induced dipole interactions. It explains how sodium chloride in water demonstrates ion-dipole forces, where the sodium ion interacts with the polar water molecule. The tutorial also discusses ion-induced dipole interactions, where an ion can distort a nonpolar molecule's electron cloud, creating a temporary dipole. Examples include zinc ions with hydrogen molecules. The video concludes with problem-solving exercises to identify polar and nonpolar molecules and their interactions with ions.

What type of interaction occurs between sodium ions and water molecules?

• Van der Waals forces

• Ion-dipole interaction

• Covalent bond

• Hydrogen bond

Which of the following best describes an ion-induced dipole interaction?

• An interaction between two polar molecules

• An interaction between an ion and a nonpolar molecule

• An interaction between two ions

• An interaction between a polar molecule and a nonpolar molecule

What happens to the electron cloud of a nonpolar molecule in the presence of an ion?

• It shifts away from the ion

• It becomes evenly distributed

• It shifts towards the ion

• It remains unchanged

Which of the following is a characteristic of a temporary induced dipole?

• It does not involve electron cloud distortion

• It is stronger than a permanent dipole

• It only exists in the presence of an ion

• It is permanent and stable

What type of dipole is water considered to be?

• Induced dipole

• Permanent dipole

• Temporary induced dipole

• Nonpolar molecule

In the example of zinc ions and hydrogen molecules, what charge does the hydrogen molecule acquire?

• No charge

• Neutral charge

• Negative charge

• Positive charge

Which molecule will form an ion-dipole interaction with a nickel ion?

• CO2

• SO2

• Iodine

• Hydrogen gas

Which molecule is nonpolar and can form an ion-induced dipole interaction with a phosphide ion?

• CO

• Water

• O2

• NH3

What is required for an ion-induced dipole interaction to occur?

• Two polar molecules

• An ion and a polar molecule

• An ion and a nonpolar molecule

• Two nonpolar molecules

Which of the following is true about CO2 in terms of polarity?

• It has a net dipole moment

• It is a polar molecule

• It forms hydrogen bonds

• It is nonpolar due to dipole cancellation