Determine whether each molecule given below is polar or nonpolar: NF3, XeF2, H2S, and CF4.
answer :
polar : NF3 , H2S
non-polar : XeF2 , CF4
explanation:
H2S is a polar molecule.
In H2S, the polar bonds are arranged asymmetrically around the central atom in a bent shape as there are two lone pairs of electrons on the central atom. The bond dipoles do not cancel so the molecule is polar.
CF4 non-polar
The molecule has 4 electron repulsions around the central C atom
NH3 polar molecule.
The molecule has 4 areas of electron repulsion around the central N atom
XeF2 - non - polar
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