NH₃, CH₃Br, SF₄ arepolar moleculesand GaH₃, XeF₄, CCl₄ are non-polar molecules.a. NH₃: PolarNH₃, orammonia, is a polar molecule. It has a trigonalpyramidalmolecular geometry with a central nitrogen atom bonded to three hydrogen atoms.The nitrogen atom also has one lone pair of electrons. The asymmetric distribution of electrondensityin NH₃ leads to a polar molecule with a net dipole moment.b. CH₃Br: PolarCH₃Br, or methyl bromide, is a polar molecule. It has atetrahedralmolecular geometry with a central carbon atom bonded to three hydrogen atoms and one bromine atom.The difference inelectronegativitybetween carbon and bromine creates a polar bond, resulting in a polar molecule.c. GaH₃: NonpolarGaH₃, or gallium hydride, is a nonpolar molecule. It has atrigonalpyramidal molecular geometry with a central gallium atom bonded to three hydrogen atoms.While gallium and hydrogen have different electronegativities, the symmetrical arrangement of the molecule cancels out the dipole moments, resulting in a nonpolar molecule.d. XeF₄: NonpolarXeF₄, or xenon tetrafluoride, is anonpolarmolecule. It has a square planar molecular geometry with a central xenon atom bonded to four fluorine atoms.The symmetric arrangement of the molecule, along with the cancellation of dipole moments, leads to a nonpolar molecule.e. CCl₄: NonpolarCCl₄, or carbon tetrachloride, is a nonpolar molecule. It has a tetrahedral molecular geometry with a central carbon atom bonded to four chlorine atoms. The symmetric arrangement of the molecule, along with the cancellation of dipole moments, results in a nonpolar molecule.f. SF₄: PolarSF₄, or sulfur tetrafluoride, is a polar molecule. It has a see-saw molecular geometry with a central sulfur atom bonded to four fluorine atoms. The presence of a lone pair on sulfur creates an asymmetric distribution of electron density, resulting in a polar molecule.To know more aboutpolar molecules, refer here:brainly.com/question/1946554##SPJ11...

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