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Hydrogen bonds to fluorine, which drags the shared electrons much closer to itself. The property that decides this tug of war is:
AElastic modulus
BElectronegativity
CIonisation power
DIsotope number
Answer & Solution
Correct answer: B. Electronegativity
1. Each element has a fixed appetite for shared electrons.
2. The bigger the gap between the two appetites, the more one-sided the bond.
3. The property is electronegativity, and the gap makes this bond polar.
_Source: OpenStax Chemistry 2e, Chapter 7, Chemical Bonding and Molecular Geometry._
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