The compound that will have a permanent dipol | vedclass

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(A) molecule has a permanent dipole moment if it is polar,meaning its net dipole moment $(\mu_{net})$ is not equal to zero.$I$: $CH_{2}Cl_{2}$ (dichlo

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$I$

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(A) molecule has a permanent dipole moment if it is polar,meaning its net dipole moment $(\mu_{net})$ is not equal to zero.$I$: $CH_{2}Cl_{2}$ (dichloromethane) is a non-symmetrical tetrahedral molecule. The bond dipoles of $C-H$ and $C-Cl$ bonds do not cancel each other out,resulting in a non-zero net dipole moment $(\mu_{net} 
eq 0)$.$II$: $trans-1,2-dichloroethene$ is a symmetrical molecule where the bond dipoles cancel each other out,resulting in $\mu_{net} = 0$.$III$: $CCl_{4}$ (carbon tetrachloride) is a highly symmetrical tetrahedral molecule where all four $C-Cl$ bond dipoles cancel each other out,resulting in $\mu_{net} = 0$.$IV$: $1,2-dibromoethyne$ is a linear,symmetrical molecule where the bond dipoles cancel each other out,resulting in $\mu_{net} = 0$.Therefore,the compound with a permanent dipole moment is $I$.

The compound that will have a permanent dipole moment among the following is

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