Strongest hydrogen bond is:
Correct answer: A. H----F
- A. H----F
- B. H-----Cl
- C. H-----O
- D. All same
Explanation
Hydrogen fluoride (HF) has the strongest hydrogen bond. This is because fluorine is the most electronegative element of the three, meaning it has a greater tendency to attract electrons. This makes the hydrogen bond in HF more polar, and therefore stronger. The strength of a hydrogen bond is determined by a number of factors, including the electronegativity of the atoms involved, the distance between the atoms, and the size of the atoms. In general, hydrogen bonds are stronger when the atoms involved are more electronegative, when the distance between the atoms is shorter, and when the atoms are smaller. In the case of HF, fluorine is the most electronegative element, the distance between the hydrogen and fluorine atoms is short, and the fluorine atom is small. This makes the hydrogen bond in HF the strongest of the three.
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About Hydrogen Bonding
Hydrogen bonding is the strong attraction between hydrogen attached to nitrogen, oxygen or fluorine and an electronegative atom in the same or another molecule. It explains unusual boiling points, viscosity, surface tension, water's properties and the difference between intermolecular and intramolecular hydrogen bonding.
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