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Sticky Note
Which of the bonds shown by a dash --- has the greatest polarity?
  1. H ----- F
  2. H ----- OH
  3. H ----- NH3
  4. None of these
Explanation
  • The polarity of a bond is determined by the difference in electronegativity between the two atoms involved.
  • Fluorine (F) is one of the most electronegative elements, much more so than hydrogen (H).
  • It leading to a significant electron density shift towards fluorine, making the H ----- F bond highly polar.

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