Question

multiple choice 2 points
which of the following has the highest boiling point?

Explanation:

To determine the compound with the highest boiling point, we analyze the intermolecular forces (IMFs) present:

Step 1: Identify IMFs for each compound

• First compound (alkene): Only London dispersion forces (LDF).
• Second compound (ether): LDF and dipole - dipole interactions.
• Third compound (alkyl chloride): LDF and dipole - dipole interactions (due to the polar C - Cl bond).
• Fourth compound (alcohol, -OH group): LDF, dipole - dipole interactions, and hydrogen bonding (since it has an -OH group, H is bonded to O, a highly electronegative atom).

Step 2: Relate IMFs to boiling point

Hydrogen bonding is a much stronger IMF than dipole - dipole interactions and LDF. Compounds with hydrogen bonding generally have higher boiling points than those with only dipole - dipole or LDF. Among the given compounds, only the alcohol (fourth option) can form hydrogen bonds.

Answer:

The compound with the -OH group (the fourth option in the multiple - choice) has the highest boiling point.