Take Another Quiz

AP Chem Exam Review

29 Questions
AP Chemistry Quizzes & Trivia

Ap chem test exam review blah blah

Questions and Answers
  • 1. 
    In liquids, the attractive intermolecular forces are
    • A. 

      Very weak compared with kinetic energies of the molecules

    • B. 

      Strong enough to hold molecules relatively close together

    • C. 

      Strong enough to keep the molecules confined to vibrating about their fixed lattice points

    • D. 

      Not strong enough to keep molecules from moving past each other

    • E. 

      Strong enough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other

  • 2. 
    As a solid element melts, the atoms become ________ and they have _________ attraction for one another.
    • A. 

      More separated, more

    • B. 

      More separated, less

    • C. 

      Closer together, more

    • D. 

      Closer together , less

    • E. 

      Larger, greater

  • 3. 
    Which statement is true about liquids?
    • A. 

      They flow and are highly ordered.

    • B. 

      They are highly ordered and not compressible.

    • C. 

      They flow and are slightly compressible.

    • D. 

      They assume both the volume and shape of their containers.

  • 4. 
    What is the predominant intermolecular force in AsH3?
    • A. 

      London-dispersion forces

    • B. 

      Ion-dipole attraction

    • C. 

      Ionic bonding

    • D. 

      Dipole-dipole attraction

    • E. 

      Hydrogen bonding

  • 5. 
    The principal source of the difference in the normal boiling points of ICl (97 degrees C; molecular mass 162 amu) and Br (59 degrees C; molecular mass 160 amu) is _________.
    • A. 

      London dispersion forces

    • B. 

      Dipole-dipole interactions

    • C. 

      Hydrogen bonding

    • D. 

      Both hydrogen bonding and dipole-dipole interactions

  • 6. 
    When NaCl dissolves in water, aqueous Na+ and Cl- ions result. The force of attraction that exists between Na+ and H2O is called a(n) ____________ interaction.
    • A. 

      Dipole-dipole

    • B. 

      Ion-ion

    • C. 

      Hydrogen bonding

    • D. 

      Ion-dipole

    • E. 

      London dispersion force

  • 7. 
    Of the following substances, only _________ has London dispersion forces as its only intermolecular force.
    • A. 

      CH3OH

    • B. 

      NH

    • C. 

      H2S

    • D. 

      CH4

    • E. 

      HCl

  • 8. 
    Which of the following compounds will have hydrogen bonds as one of its intermolecular forces?
    • A. 

      HF and NH3

    • B. 

      SiH4 only

    • C. 

      CH4 only

    • D. 

      NH3 only

    • E. 

      HF only

  • 9. 
    Which of the following should have the lowest boiling point?
    • A. 

      PH3

    • B. 

      H2S

    • C. 

      HCl

    • D. 

      SiH4

    • E. 

      H2O

  • 10. 
    Of the following substances, _____ has the highest boiling point.
    • A. 

      H2O

    • B. 

      CO2

    • C. 

      CH4

    • D. 

      Kr

    • E. 

      NH3

  • 11. 
    The shape of a liquid is determined by
    • A. 

      The viscosity of the liquid

    • B. 

      The type of material the container is made of

    • C. 

      The relative magnitudes of cohesive forces in the liquid and adhesive forces between the liquid and its container

    • D. 

      The amount of hydrogen bonding in the liquid

    • E. 

      The volume of the liquid

  • 12. 
    What is the phase transition between solid to liquid?
    • A. 

      Freezing

    • B. 

      Melting

    • C. 

      Depositing

    • D. 

      Subliming

    • E. 

      Vaporizing

  • 13. 
    A substance that expands to fill its container yet has a density approaching that of a liquid, and that can behave as a solvent is called a(n)
    • A. 

      Plasma

    • B. 

      Gas

    • C. 

      Liquid

    • D. 

      Amorphous solid

    • E. 

      Supercritical fluid and gas

  • 14. 
    A substance whose triple point occurs at 222 K and 3.93 atm
    • A. 

      Will melt rather than sublime at STP.

    • B. 

      Will have a critical point of 211 K and 2.93 atm.

    • C. 

      Will have a critical point of 233 K and 2.93 atm.

    • D. 

      Will sublime rather than melt at STP.

    • E. 

      Will not have a critical point.

  • 15. 
    A solid has a very high melting point, great hardness, and poor electrical conduction. This is a(n) ____________ solid.
    • A. 

      Ionic

    • B. 

      Molecular

    • C. 

      Metallic

    • D. 

      Covalent network

    • E. 

      Both metallic and covalent network

  • 16. 
    Metallic solids do not exhibit __________.
    • A. 

      Excellent thermal conductivity.

    • B. 

      Excellent electrical conductivity.

    • C. 

      Variable hardness.

    • D. 

      Extreme brittleness

    • E. 

      Variable melting point.

  • 17. 
    The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the _____ segment corresponds to the heat capacity of the liquid of the substance.
    • A. 

      AB

    • B. 

      BC

    • C. 

      CD

    • D. 

      DE

    • E. 

      EF

  • 18. 
    The heat flow into the sample in the segment ________ will yield the value of the Hvap of this substance.
    • A. 

      AB

    • B. 

      BC

    • C. 

      CD

    • D. 

      DE

    • E. 

      EF

  • 19. 
    London dispersion forces result form the attraction between __________ and __________ dipoles.
  • 20. 
    What two types of molecules exhibit London dispersion forces? _____________
  • 21. 
    Viscosity is ___________________________.
  • 22. 
    X-Ray diffraction was used to make what important discovery?
  • 23. 
    What are two real life examples of uses for supercritical fluid extraction?
  • 24. 
    Three structures of C are ________, ___________, and ___________.
  • 25. 
    In which group of elements would all members be expected to have very similar chemical properties?
    • A. 

      O, S, Se

    • B. 

      N, O, F

    • C. 

      Na, Mg, K

    • D. 

      S, Se, Si

    • E. 

      Na, Ne, Mg

  • 26. 
    Electrons in the 1s subshell are much closer to the nucleus in Ar than in He due to the larger ________ in Ar.
    • A. 

      Nuclear charge

    • B. 

      Paramagnetism

    • C. 

      Diamagnetism

    • D. 

      Hund's rule

    • E. 

      Azimuthal quantum number

  • 27. 
    Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and Ar?
    • A. 

      Mg > Na > P > Si > Ar

    • B. 

      Ar > Si > P > Na > Mg

    • C. 

      Si > P > Ar > Na > Mg

    • D. 

      Na > Mg > Si > P > Ar

    • E. 

      Ar > P > Si > Mg > Na

  • 28. 
    Screening by core electrons in atoms is ______________.
    • A. 

      Less efficient than that by valence electrons.

    • B. 

      More efficient than that by valence electrons.

    • C. 

      Essentially identical to that by valence electrons.

    • D. 

      Responsible for a general decrease in atomic radius going down a group

    • E. 

      Both essentially identical to that by valence electrons and responsible for a general decrease in atomic radius going down a group

  • 29. 
    Which one of the following elements has the largest atomic radius?
    • A. 

      Se

    • B. 

      As

    • C. 

      S

    • D. 

      Sb

    • E. 

      Te

Related Topics