NEET UG CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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Which of the following are arranged in decreasing order of dipole moment:

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Correct option: B

\mathrm{C}{\mathrm{H}_3}\mathrm{Cl},\mathrm{\;C}{\mathrm{H}_3}\mathrm{F},\mathrm{\;C}{\mathrm{H}_3}\mathrm{Br}

Option B is correct because dipole moment depends on both electronegativity difference and bond length. Although F is more electronegative than Cl, the C-Cl bond is longer, resulting in a higher dipole moment for CH3Cl.

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