Question

Which of the following pair of liquids has dipole-induced dipole interaction?

• A. Water and ammonia
• B. Water and chloroform
• C. Water and benzene
• D. Water and ethyl alcohol

Hint:

Polar + Non-polar molecules generally show: \[ \text{Dipole-induced dipole interaction} \]

Answer 1

The Correct Option is C

Concept:
Dipole-induced dipole interaction occurs between:
• One polar molecule
• One non-polar molecule The polar molecule induces a temporary dipole in the non-polar molecule.

Step 1: Identify polar and non-polar liquids.
• Water $\rightarrow$ polar
• Ammonia $\rightarrow$ polar
• Chloroform $\rightarrow$ polar
• Benzene $\rightarrow$ non-polar
• Ethyl alcohol $\rightarrow$ polar

Step 2: Check each option.
• Water + ammonia $\rightarrow$ dipole-dipole hydrogen bonding
• Water + chloroform $\rightarrow$ dipole-dipole interaction
• Water + benzene $\rightarrow$ dipole-induced dipole interaction
• Water + ethyl alcohol $\rightarrow$ hydrogen bonding

Step 3: Conclusion. Since water is polar and benzene is non-polar: \[ \boxed{\text{Water and benzene}} \] show dipole-induced dipole interaction.