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Test your basic knowledge |
GRE Chemistry Inorganic
Start Test
Study First
Subjects
:
gre
,
science
,
chemistry
Instructions:
Answer 26 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. n-type conductivity
Allows AC to be converted to DC
Excess electrons form a donor band close in energy to the conduction band
Role of Lewis base in coordination chemistry
An atom is missing from its usual site
2. L.bcc
Forms ammonia from nitrogen
4/sqrt(2) * r
4/sqrt(3) * r
(1.33x10^-13)* ³v(A)
3. Intrinsic defect
Use low amount of current to regulate large amount
Determined by thermodynamics (Increased entropy)
Magnetic moment = v(n*(n+2))
# of atoms of a ligand attached to a metal atom
4. Cobalamin
Allows AC to be converted to DC
Involved in biological methyl transfer
Determined by synthetic conditions
Fe(II)
5. p-n junction
Involved in biological methyl transfer
Fe(II)
Allows AC to be converted to DC
Determined by synthetic conditions
6. Nuclear Radius
More soluble
Recovered by electrolysis of molten salt
Z
(1.33x10^-13)* ³v(A)
7. Extrinsic defect
Determined by synthetic conditions
Determined by thermodynamics (Increased entropy)
(1.33x10^-13)* ³v(A)
Electron holes are formed by promotion of valence band electrons to the acceptor band
8. Ferrous
Fe(II)
Insulator which is doped with other elements
Role of Lewis base in coordination chemistry
# of atoms of a ligand attached to a metal atom
9. Extrinsic semiconductor
Excess electrons form a donor band close in energy to the conduction band
N=n; n+4; n+6
Determined by thermodynamics (Increased entropy)
Insulator which is doped with other elements
10. Paramagnetism
Magnetic moment = v(n*(n+2))
Determined by synthetic conditions
4/sqrt(3) * r
(1.33x10^-13)* ³v(A)
11. Conduction band
Allows AC to be converted to DC
An atom has been displaced to another site
Use low amount of current to regulate large amount
Unfully occupied orbital - potentially overlapping
12. Atomic Number
An atom is missing from its usual site
Unfully occupied orbital - potentially overlapping
Determined by synthetic conditions
Z
13. Mass Number
An atom has been displaced to another site
Electron holes are formed by promotion of valence band electrons to the acceptor band
Unfully occupied orbital - potentially overlapping
A
14. p-type conductivity
An atom is missing from its usual site
Role of Lewis base in coordination chemistry
Electron holes are formed by promotion of valence band electrons to the acceptor band
Excess electrons form a donor band close in energy to the conduction band
15. Larger difference in atomic radii
Excess electrons form a donor band close in energy to the conduction band
N=n; n+4; n+6
More soluble
4/sqrt(3) * r
16. Ligand / chelator
(1.33x10^-13)* ³v(A)
An atom is missing from its usual site
Role of Lewis base in coordination chemistry
Excess electrons form a donor band close in energy to the conduction band
17. Schottky defect
A
Determined by thermodynamics (Increased entropy)
4/sqrt(2) * r
An atom is missing from its usual site
18. Valence Band
Electron holes are formed by promotion of valence band electrons to the acceptor band
Contain freely moving electrons
Forms ammonia from nitrogen
Fe(II)
19. Haber Process
An atom has been displaced to another site
# of atoms of a ligand attached to a metal atom
Forms ammonia from nitrogen
(1.33x10^-13)* ³v(A)
20. L.fcc
4/sqrt(2) * r
# of atoms of a ligand attached to a metal atom
Magnetic moment = v(n*(n+2))
Fe(II)
21. Frenkel defect
An atom has been displaced to another site
A
Insulator which is doped with other elements
Contain freely moving electrons
22. Hapticity
An atom has been displaced to another site
# of atoms of a ligand attached to a metal atom
4/sqrt(2) * r
More soluble
23. Transistor
Recovered by electrolysis of molten salt
Determined by thermodynamics (Increased entropy)
An atom has been displaced to another site
Use low amount of current to regulate large amount
24. Closo-; nido-; arachno- boranes
# of atoms of a ligand attached to a metal atom
(1.33x10^-13)* ³v(A)
N=n; n+4; n+6
Involved in biological methyl transfer
25. Alkali metals
Recovered by electrolysis of molten salt
Conductivity increases with T
Fe(II)
A
26. Semiconductor
Insulator which is doped with other elements
Conductivity increases with T
A
4/sqrt(3) * r