1. What is the most significant reason why HF has a higher boiling point than HCl?
- Chlorine's larger number of electrons means more shielding of the nucleus therefore more repulsion between atoms in the H-Cl bond
- HF is more polar so can create stronger permanent dipole-dipole forces
- HF can form strong hydrogen bonds between molecules, HCl cannot
- The H-F bond has a higher bond enthalpy than H-Cl
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Other questions in this quiz
2. Which of these has the lowest boiling point?
3. Which of these is not a property of ionic compounds?
- High melting points
- Conduct when solid
- Often soluble in water
4. What is a dative covalent bond?
- A bond vunerable to nucelophilic attack
- A bond where one atom donates 3 electrons
- A bond formed from the overlap of an empty orbital and a lone pair
- A bond with a large difference in electronegativity between the two atoms
5. Which of these molecules doesn't have a dative bond?