An engineer replaces the C-Cl bond in chloromethane with C-F to form fluoromethane. Which effect dominates, given fluorine's greater electronegativity?

💡 Explanation

Fluorine's higher electronegativity increases the electron density difference between carbon and fluorine. The dipole moment increases because the dipole moment is directly proportional to charge separation; therefore, the molecule's polarity increases, rather than acidity which would require considering conjugate base stability.

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