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Good Point.There are two questions.Which molecule is the most polar.Which molecule has the most polar bonds.CF4 has the most polar bonds, but the molecule is symmetric, and thus non polar.-C≡N (or HCN or NaCN) would be the most polar molecule.
In the carbon tetrachloride molecule, four chlorine atoms are positioned symmetrically as corners in a tetrahedral configuration joined to a central carbon atom by single covalent bonds. Because of this symmetrical geometry, CCl4 is non-polar. Methane gas has the same structure, making carbon tetrachloride a halomethane. As a solvent, it is well suited to dissolving other non-polar compounds, fats and oils.
The question is:Which molecule contains the most polar bonds? (Is this asking which molecule has the most bonds, or which molecule is the most polar based on electronegativity???)