Question Detail
Question
Why do larger molecules generally have higher boiling points due to London dispersion forces?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Larger molecules (with greater molecular weight and more electrons) have larger electron clouds that are more easily polarized. This increased polarizability leads to stronger London dispersion forces, which require more energy to overcome, resulting in higher melting and boiling points.
Hint
More electrons mean more temporary dipoles and stronger attractions.