Which one of the following molecules is polar | vedclass

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(D) To determine polarity,we look at the molecular geometry and the net dipole moment.$I_3^{-}$ is linear with a net dipole moment of $0$.$CO_3^{2-}$

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$PH_3$

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(D) To determine polarity,we look at the molecular geometry and the net dipole moment.$I_3^{-}$ is linear with a net dipole moment of $0$.$CO_3^{2-}$ is trigonal planar with a net dipole moment of $0$.$XeF_4$ is square planar with a net dipole moment of $0$.$PH_3$ has a pyramidal geometry due to the presence of one lone pair on the phosphorus atom,which results in a non-zero net dipole moment.Therefore,$PH_3$ is a polar molecule.

Which one of the following molecules is polar?

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