Which of the bonds shown by a dash --- has the greatest polarity?
Everyday Science / Chemistry — Multiple-choice practice
- A. H ----- F
- B. H ----- NH3
- C. None of these
- D. H ----- OH
Correct answer
H ----- F
Explanation
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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