Which of the following species has the largest dipole moment (i.e., is the most polar) A) CH₄ B) CH₃Br C) CH₃Cl D) CH₃F E) CH₃I

Question

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The dipole moment in molecules is primarily determined by the difference in electronegativity between the atoms and the molecular geometry. Fluorine has the highest electronegativity among the halogens listed (Br, Cl, I, and F), making CH3F (D) the most polar molecule due to the greatest electronegativity difference between carbon and fluorine, leading to the largest dipole moment.

Which of the Following Species Has the Largest Dipole Moment