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GRE Chemistry Inorganic

Instructions:

Answer 26 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. L.fcc
4/sqrt(2) * r
More soluble
Recovered by electrolysis of molten salt
Use low amount of current to regulate large amount

2. Semiconductor
An atom is missing from its usual site
(1.33x10^-13)* ³v(A)
# of atoms of a ligand attached to a metal atom
Conductivity increases with T

3. Extrinsic semiconductor
Insulator which is doped with other elements
A
Excess electrons form a donor band close in energy to the conduction band
Role of Lewis base in coordination chemistry

4. Hapticity
Determined by thermodynamics (Increased entropy)
# of atoms of a ligand attached to a metal atom
Electron holes are formed by promotion of valence band electrons to the acceptor band
(1.33x10^-13)* ³v(A)

5. Paramagnetism
# of atoms of a ligand attached to a metal atom
A
Magnetic moment = v(n*(n+2))
N=n; n+4; n+6

6. p-n junction
Allows AC to be converted to DC
Involved in biological methyl transfer
Unfully occupied orbital - potentially overlapping
4/sqrt(3) * r

7. Conduction band
Allows AC to be converted to DC
An atom has been displaced to another site
Unfully occupied orbital - potentially overlapping
# of atoms of a ligand attached to a metal atom

8. Cobalamin
Involved in biological methyl transfer
(1.33x10^-13)* ³v(A)
# of atoms of a ligand attached to a metal atom
More soluble

9. n-type conductivity
Excess electrons form a donor band close in energy to the conduction band
# of atoms of a ligand attached to a metal atom
Forms ammonia from nitrogen
Determined by thermodynamics (Increased entropy)

10. L.bcc
Fe(II)
Electron holes are formed by promotion of valence band electrons to the acceptor band
Conductivity increases with T
4/sqrt(3) * r

11. Nuclear Radius
Determined by thermodynamics (Increased entropy)
Forms ammonia from nitrogen
Z
(1.33x10^-13)* ³v(A)

12. Extrinsic defect
Determined by synthetic conditions
4/sqrt(2) * r
Determined by thermodynamics (Increased entropy)
Fe(II)

13. Transistor
Recovered by electrolysis of molten salt
A
Use low amount of current to regulate large amount
An atom has been displaced to another site

14. Schottky defect
Forms ammonia from nitrogen
Electron holes are formed by promotion of valence band electrons to the acceptor band
Insulator which is doped with other elements
An atom is missing from its usual site

15. Haber Process
An atom is missing from its usual site
Forms ammonia from nitrogen
Contain freely moving electrons
Magnetic moment = v(n*(n+2))

16. Ferrous
Fe(II)
N=n; n+4; n+6
4/sqrt(2) * r
Recovered by electrolysis of molten salt

17. Valence Band
Forms ammonia from nitrogen
Involved in biological methyl transfer
Contain freely moving electrons
Excess electrons form a donor band close in energy to the conduction band

18. Mass Number
A
Unfully occupied orbital - potentially overlapping
# of atoms of a ligand attached to a metal atom
An atom is missing from its usual site

19. Frenkel defect
Recovered by electrolysis of molten salt
Electron holes are formed by promotion of valence band electrons to the acceptor band
An atom has been displaced to another site
Insulator which is doped with other elements

20. Ligand / chelator
N=n; n+4; n+6
Magnetic moment = v(n*(n+2))
Excess electrons form a donor band close in energy to the conduction band
Role of Lewis base in coordination chemistry

21. Closo-; nido-; arachno- boranes
Use low amount of current to regulate large amount
An atom is missing from its usual site
N=n; n+4; n+6
Insulator which is doped with other elements

22. p-type conductivity
Allows AC to be converted to DC
Unfully occupied orbital - potentially overlapping
An atom is missing from its usual site
Electron holes are formed by promotion of valence band electrons to the acceptor band

23. Atomic Number
Use low amount of current to regulate large amount
Unfully occupied orbital - potentially overlapping
Z
Forms ammonia from nitrogen

24. Intrinsic defect
More soluble
Determined by thermodynamics (Increased entropy)
4/sqrt(3) * r
Allows AC to be converted to DC

25. Alkali metals
Recovered by electrolysis of molten salt
Determined by synthetic conditions
Fe(II)
Insulator which is doped with other elements

26. Larger difference in atomic radii
# of atoms of a ligand attached to a metal atom
More soluble
Fe(II)
4/sqrt(3) * r