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Are all symmetrical molecules non polar Watch

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    So are all symmetrical molecules non polar? Like CH4, or other tetrahedrals
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    If they're completely symmetrical, yes.
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    you have to be a little more precise about what you mean. Symmetry is not an "on" or "off" issue. There are different symmetry groups. Ammonia for example has a high degree of symmetry, but is polar.

    But in the case of tetrahedral molecules, yes, they would be non polar if all the substituents are identical.
 
 
 
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