Question Detail
Question
Which molecule has a nonzero dipole moment?
Correct Answer
Option D is the correct answer.
Detailed Explanation
CHCl3 (chloroform) has a net dipole moment due to the electronegativity difference between C-H and C-Cl bonds and its asymmetric tetrahedral structure. Cl2, CO2 (linear), and CCl4 (tetrahedral) are all symmetric and have zero dipole moment.
Hint
Molecules with high symmetry often have a dipole moment of zero.