Which of the following species has the largest dipole moment (i.e., is the most polar) A) H₂ B) H₂O C) H₂S D) H₂Se E) CH₄

Question

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HSO (choice B) has the largest dipole moment because it involves two different elements (hydrogen and sulfur) plus oxygen, which is highly electronegative. The presence of oxygen significantly increases the molecule's polarity compared to the other options, which do not include oxygen. This difference in electronegativity between the hydrogen, sulfur, and oxygen atoms creates a larger dipole moment.

Which of the Following Species Has the Largest Dipole Moment