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- 1. Multiple Choice
Which sample has hydrogen bonding?
H2S
CH4
NH3
HI
- 2. Multiple Choice
Water has an unusually high boiling point for a molecular compound because it has
hydrogen bonding
ion-ion attractions
a high density
a large gram formula mass
- 3. Multiple Choice
Which substance has the weakest intermolecular forces?
Substance A, boiling point of 75 °C
Substance B, boiling point of 105 °C
Substance C, boiling point of 25 °C
Substance d, boiling point of 45 °C
- 4. Multiple Choice
Which substance would have the weakest intermolecular forces of attraction?
CH4
NaCl
H2O
MgF2
- 5. Multiple Choice
Which substance would have the highest boiling point at standard pressure?
H2O
CCl4
CO2
NBr3
- 6. Multiple Choice
The weaker the intermolecular forces of a substance the _____________ the boiling point
higher
lower
- 7. Multiple Choice
________________________ have the strongest intermolecular forces of attraction.
Dipole- Dipole
Dispersion
Hydrogen Bonds
- 8. Multiple ChoiceHydrogen bonding occurs when hydrogen is bonded to N, O, or F. Which of the following has hydrogen bonding?CBr4NO2H2SNH3
- 9. Multiple Choice
Which of these has only dispersion forces?
I2
NH3
OCl2
SH2
- 10. Multiple Choice
Intermolecular forces for: NH3
Dispersion Force
Dipole dipole
Hydrogen bonding
all of these
- 11. Multiple Choice
Intermolecular forces for: CO2
Dispersion Force
Dipole dipole
Hydrogen bonding
- 12. Multiple Choice
Which one has higher melting point? CO2 or H2O
CO2
H2O
- 13. Multiple ChoiceWhat explains the very high melting and boiling point of waterStrong dipole-dipole bonds between water moleculesStrong hydrogen bonds between water moleculesDispersion forces which are present in all moleculesAsymmetrical shape of the polar bonds.
- 14. Multiple ChoiceDoes H2O have hydrogen bonding?yesno
- 15. Multiple ChoiceDoes H2S have hydrogen bonding?yesno
- 16. Multiple ChoiceDoes HF have hydrogen bonding?yesno
- 17. Multiple ChoiceDoes HCl have hydrogen bonding?yesno
- 18. Multiple ChoiceDoes CH4 have hydrogen bonding?yesno
- 19. Multiple ChoiceLondon forces are stronger in heavier atoms or molecules, and weaker in lighter atoms or molecules. Which of these has the strongest London forces?F2Br2I2Cl2
- 20. Multiple Choice
Rank these in order of strength:
ion dipole
London forces
hydrogen bond
dipole-dipole attraction
dipole-dipole>ion dipole>hydrogen bond>London
London>dipole-diple>hydrogen bond>ion dipole
ion dipole>hydrogen bond>dipole-dipole>London
hydrogen bond>dipole-dipole>London>ion dipole
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