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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. Intrinsic defect
(1.33x10^-13)* v(A)
Use low amount of current to regulate large amount
Determined by thermodynamics (Increased entropy)
# of atoms of a ligand attached to a metal atom

2. n-type conductivity
Role of Lewis base in coordination chemistry
(1.33x10^-13)* v(A)
Allows AC to be converted to DC
Excess electrons form a donor band close in energy to the conduction band

3. Valence Band
4/sqrt(2) * r
Fe(II)
Contain freely moving electrons
Allows AC to be converted to DC

4. L.fcc
4/sqrt(2) * r
4/sqrt(3) * r
A
Fe(II)

5. Extrinsic semiconductor
Insulator which is doped with other elements
N=n; n+4; n+6
Fe(II)
Role of Lewis base in coordination chemistry

6. L.bcc
4/sqrt(3) * r
(1.33x10^-13)* v(A)
Forms ammonia from nitrogen
Role of Lewis base in coordination chemistry

7. Nuclear Radius
Excess electrons form a donor band close in energy to the conduction band
(1.33x10^-13)* v(A)
Allows AC to be converted to DC
Magnetic moment = v(n*(n+2))

8. Atomic Number
Forms ammonia from nitrogen
Magnetic moment = v(n*(n+2))
Z
Determined by synthetic conditions

9. Alkali metals
Recovered by electrolysis of molten salt
An atom has been displaced to another site
Magnetic moment = v(n*(n+2))
Conductivity increases with T

10. Schottky defect
# of atoms of a ligand attached to a metal atom
An atom has been displaced to another site
An atom is missing from its usual site
Unfully occupied orbital - potentially overlapping

11. Haber Process
Magnetic moment = v(n*(n+2))
Excess electrons form a donor band close in energy to the conduction band
Recovered by electrolysis of molten salt
Forms ammonia from nitrogen

12. Larger difference in atomic radii
More soluble
Magnetic moment = v(n*(n+2))
(1.33x10^-13)* v(A)
An atom has been displaced to another site

13. Ferrous
Contain freely moving electrons
Fe(II)
Role of Lewis base in coordination chemistry
4/sqrt(3) * r

14. Transistor
N=n; n+4; n+6
Use low amount of current to regulate large amount
Magnetic moment = v(n*(n+2))
Insulator which is doped with other elements

15. Mass Number
4/sqrt(3) * r
A
Involved in biological methyl transfer
Excess electrons form a donor band close in energy to the conduction band

16. p-n junction
Contain freely moving electrons
Allows AC to be converted to DC
An atom has been displaced to another site
Magnetic moment = v(n*(n+2))

17. Closo-; nido-; arachno- boranes
N=n; n+4; n+6
Magnetic moment = v(n*(n+2))
Contain freely moving electrons
Fe(II)

18. Ligand / chelator
More soluble
Recovered by electrolysis of molten salt
Role of Lewis base in coordination chemistry
An atom is missing from its usual site

19. Frenkel defect
An atom has been displaced to another site
(1.33x10^-13)* v(A)
4/sqrt(3) * r
Recovered by electrolysis of molten salt

20. Extrinsic defect
Unfully occupied orbital - potentially overlapping
Excess electrons form a donor band close in energy to the conduction band
Determined by synthetic conditions
Determined by thermodynamics (Increased entropy)

21. Paramagnetism
Determined by synthetic conditions
Z
Magnetic moment = v(n*(n+2))
Contain freely moving electrons

22. Hapticity
Conductivity increases with T
4/sqrt(2) * r
# of atoms of a ligand attached to a metal atom
A

23. Conduction band
Unfully occupied orbital - potentially overlapping
4/sqrt(3) * r
Recovered by electrolysis of molten salt
Conductivity increases with T

24. p-type conductivity
Electron holes are formed by promotion of valence band electrons to the acceptor band
N=n; n+4; n+6
Determined by synthetic conditions
Excess electrons form a donor band close in energy to the conduction band

25. Semiconductor
Determined by thermodynamics (Increased entropy)
Conductivity increases with T
More soluble
Magnetic moment = v(n*(n+2))

26. Cobalamin
Recovered by electrolysis of molten salt
4/sqrt(2) * r
4/sqrt(3) * r
Involved in biological methyl transfer

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GRE Chemistry Inorganic

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