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(A) The dipole moment $(\mu)$ depends on both the electronegativity difference and the bond length. For methyl halides $(CH_3X)$, the electronegativit

Vedclass · Accepted Answer

$CH_3Cl > CH_3F > CH_3Br$

Vedclass · Answer

(A) The dipole moment $(\mu)$ depends on both the electronegativity difference and the bond length. For methyl halides $(CH_3X)$, the electronegativity decreases in the order $F > Cl > Br > I$. However, the bond length increases in the order $C-F In $CH_3Cl$, the effect of the larger bond length of $C-Cl$ compared to $C-F$ outweighs the higher electronegativity of $F$. Thus, the dipole moment order is $CH_3Cl > CH_3F > CH_3Br$.

Which of the following represents the correct decreasing order of dipole moment?

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