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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.
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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. Paramagnetism
More soluble
Recovered by electrolysis of molten salt
Magnetic moment = v(n*(n+2))
Insulator which is doped with other elements

2. p-type conductivity
An atom has been displaced to another site
Use low amount of current to regulate large amount
Electron holes are formed by promotion of valence band electrons to the acceptor band
# of atoms of a ligand attached to a metal atom

3. Extrinsic semiconductor
Insulator which is doped with other elements
(1.33x10^-13)* ³v(A)
A
Conductivity increases with T

4. Larger difference in atomic radii
More soluble
Determined by thermodynamics (Increased entropy)
Involved in biological methyl transfer
An atom is missing from its usual site

5. Hapticity
Contain freely moving electrons
# of atoms of a ligand attached to a metal atom
4/sqrt(3) * r
Unfully occupied orbital - potentially overlapping

6. Alkali metals
Determined by synthetic conditions
Recovered by electrolysis of molten salt
N=n; n+4; n+6
Conductivity increases with T

7. Transistor
# of atoms of a ligand attached to a metal atom
A
Use low amount of current to regulate large amount
Insulator which is doped with other elements

8. Semiconductor
Conductivity increases with T
(1.33x10^-13)* ³v(A)
Involved in biological methyl transfer
4/sqrt(2) * r

9. L.bcc
Magnetic moment = v(n*(n+2))
4/sqrt(3) * r
Forms ammonia from nitrogen
Insulator which is doped with other elements

10. Mass Number
Excess electrons form a donor band close in energy to the conduction band
Determined by synthetic conditions
A
Recovered by electrolysis of molten salt

11. L.fcc
4/sqrt(2) * r
An atom has been displaced to another site
Allows AC to be converted to DC
4/sqrt(3) * r

12. Valence Band
Contain freely moving electrons
4/sqrt(3) * r
Unfully occupied orbital - potentially overlapping
Fe(II)

13. Extrinsic defect
Determined by synthetic conditions
Insulator which is doped with other elements
# of atoms of a ligand attached to a metal atom
Forms ammonia from nitrogen

14. n-type conductivity
Excess electrons form a donor band close in energy to the conduction band
Fe(II)
Recovered by electrolysis of molten salt
A

15. Atomic Number
Use low amount of current to regulate large amount
Insulator which is doped with other elements
Electron holes are formed by promotion of valence band electrons to the acceptor band
Z

16. Conduction band
Allows AC to be converted to DC
Unfully occupied orbital - potentially overlapping
Determined by thermodynamics (Increased entropy)
N=n; n+4; n+6

17. Cobalamin
Z
Recovered by electrolysis of molten salt
Involved in biological methyl transfer
Unfully occupied orbital - potentially overlapping

18. Nuclear Radius
Recovered by electrolysis of molten salt
Electron holes are formed by promotion of valence band electrons to the acceptor band
(1.33x10^-13)* ³v(A)
Determined by thermodynamics (Increased entropy)

19. Frenkel defect
# of atoms of a ligand attached to a metal atom
(1.33x10^-13)* ³v(A)
An atom has been displaced to another site
N=n; n+4; n+6

20. Ligand / chelator
4/sqrt(3) * r
Allows AC to be converted to DC
Use low amount of current to regulate large amount
Role of Lewis base in coordination chemistry

21. p-n junction
Allows AC to be converted to DC
Unfully occupied orbital - potentially overlapping
Conductivity increases with T
Insulator which is doped with other elements

22. Intrinsic defect
Contain freely moving electrons
Magnetic moment = v(n*(n+2))
More soluble
Determined by thermodynamics (Increased entropy)

23. Closo-; nido-; arachno- boranes
Insulator which is doped with other elements
N=n; n+4; n+6
Contain freely moving electrons
Allows AC to be converted to DC

24. Schottky defect
Forms ammonia from nitrogen
Use low amount of current to regulate large amount
An atom is missing from its usual site
Recovered by electrolysis of molten salt

25. Haber Process
Forms ammonia from nitrogen
Allows AC to be converted to DC
Magnetic moment = v(n*(n+2))
An atom has been displaced to another site

26. Ferrous
Fe(II)
An atom is missing from its usual site
Electron holes are formed by promotion of valence band electrons to the acceptor band
4/sqrt(2) * r