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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. Extrinsic defect
Electron holes are formed by promotion of valence band electrons to the acceptor band
Recovered by electrolysis of molten salt
A
Determined by synthetic conditions

2. Mass Number
Forms ammonia from nitrogen
Fe(II)
A
Electron holes are formed by promotion of valence band electrons to the acceptor band

3. L.bcc
An atom has been displaced to another site
Excess electrons form a donor band close in energy to the conduction band
4/sqrt(3) * r
Determined by synthetic conditions

4. Valence Band
An atom is missing from its usual site
A
Conductivity increases with T
Contain freely moving electrons

5. n-type conductivity
4/sqrt(3) * r
Excess electrons form a donor band close in energy to the conduction band
# of atoms of a ligand attached to a metal atom
N=n; n+4; n+6

6. Alkali metals
N=n; n+4; n+6
Involved in biological methyl transfer
Unfully occupied orbital - potentially overlapping
Recovered by electrolysis of molten salt

7. Conduction band
Unfully occupied orbital - potentially overlapping
Insulator which is doped with other elements
Use low amount of current to regulate large amount
Fe(II)

8. Haber Process
Conductivity increases with T
More soluble
Forms ammonia from nitrogen
4/sqrt(3) * r

9. Nuclear Radius
Fe(II)
Insulator which is doped with other elements
(1.33x10^-13)* ³v(A)
4/sqrt(3) * r

10. Larger difference in atomic radii
4/sqrt(2) * r
Contain freely moving electrons
More soluble
Allows AC to be converted to DC

11. Hapticity
Determined by synthetic conditions
An atom has been displaced to another site
Magnetic moment = v(n*(n+2))
# of atoms of a ligand attached to a metal atom

12. L.fcc
4/sqrt(2) * r
Allows AC to be converted to DC
Excess electrons form a donor band close in energy to the conduction band
More soluble

13. Atomic Number
Excess electrons form a donor band close in energy to the conduction band
An atom is missing from its usual site
Z
Use low amount of current to regulate large amount

14. Semiconductor
Forms ammonia from nitrogen
Contain freely moving electrons
Excess electrons form a donor band close in energy to the conduction band
Conductivity increases with T

15. Closo-; nido-; arachno- boranes
Insulator which is doped with other elements
Magnetic moment = v(n*(n+2))
Determined by thermodynamics (Increased entropy)
N=n; n+4; n+6

16. Ferrous
Electron holes are formed by promotion of valence band electrons to the acceptor band
Recovered by electrolysis of molten salt
Contain freely moving electrons
Fe(II)

17. Frenkel defect
An atom has been displaced to another site
Allows AC to be converted to DC
Excess electrons form a donor band close in energy to the conduction band
Forms ammonia from nitrogen

18. Transistor
4/sqrt(2) * r
Contain freely moving electrons
Use low amount of current to regulate large amount
Conductivity increases with T

19. Schottky defect
N=n; n+4; n+6
4/sqrt(2) * r
Fe(II)
An atom is missing from its usual site

20. p-type conductivity
4/sqrt(2) * r
Forms ammonia from nitrogen
Electron holes are formed by promotion of valence band electrons to the acceptor band
Allows AC to be converted to DC

21. p-n junction
Unfully occupied orbital - potentially overlapping
4/sqrt(3) * r
Role of Lewis base in coordination chemistry
Allows AC to be converted to DC

22. Ligand / chelator
Allows AC to be converted to DC
Role of Lewis base in coordination chemistry
More soluble
Unfully occupied orbital - potentially overlapping

23. Extrinsic semiconductor
Insulator which is doped with other elements
Conductivity increases with T
A
# of atoms of a ligand attached to a metal atom

24. Intrinsic defect
Determined by thermodynamics (Increased entropy)
Allows AC to be converted to DC
Recovered by electrolysis of molten salt
# of atoms of a ligand attached to a metal atom

25. Cobalamin
A
Role of Lewis base in coordination chemistry
Conductivity increases with T
Involved in biological methyl transfer

26. Paramagnetism
An atom has been displaced to another site
Allows AC to be converted to DC
Magnetic moment = v(n*(n+2))
An atom is missing from its usual site

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Test your basic knowledge |

GRE Chemistry Inorganic

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Adobe Illustrator Shortcuts

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Adobe Photoshop CS 2 - CS 3

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Adobe Photoshop CS 5 Keyboard Shortcuts

Adobe Photoshop Graphic Design

Adobe Photoshop Tools And Commands

Adobe Premiere Keyboard Shortcuts

Adobe Premiere Pro

After Effects Keyboard Shortcuts

Agile Development

Agile Scrum Methodology

Ajax

Android Programming

Animation

Asp.net Programming