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Chemistry

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Which of the following molecules has polar bonds and is nonpolar?

HF
ICI3
NF3
SF4
BF3

  • Chemistry - ,

    Look up the electronegativity of H and F, for example. H is 2.1, F is 4.0, subtract them to get a difference of 1.9 so HF is polar. Strictly speaking, there are no non-polar bonds in those compounds listed. The difference in electronegativity must be zero to have a non-polar bond. ICl3 probably comes the closest to being non-polar but the difference is not zero.

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