Test your basic knowledge |

GRE Chemistry Inorganic

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. L.bcc
4/sqrt(3) * r
Recovered by electrolysis of molten salt
Involved in biological methyl transfer
Fe(II)

2. Haber Process
N=n; n+4; n+6
Conductivity increases with T
Forms ammonia from nitrogen
Involved in biological methyl transfer

3. Larger difference in atomic radii
More soluble
Electron holes are formed by promotion of valence band electrons to the acceptor band
Forms ammonia from nitrogen
(1.33x10^-13)* ³v(A)

4. Atomic Number
Determined by synthetic conditions
An atom is missing from its usual site
Electron holes are formed by promotion of valence band electrons to the acceptor band
Z

5. Ferrous
N=n; n+4; n+6
Allows AC to be converted to DC
Conductivity increases with T
Fe(II)

6. Nuclear Radius
Allows AC to be converted to DC
Determined by synthetic conditions
(1.33x10^-13)* ³v(A)
Determined by thermodynamics (Increased entropy)

7. Alkali metals
An atom has been displaced to another site
Electron holes are formed by promotion of valence band electrons to the acceptor band
A
Recovered by electrolysis of molten salt

8. p-n junction
Allows AC to be converted to DC
Magnetic moment = v(n*(n+2))
Recovered by electrolysis of molten salt
Role of Lewis base in coordination chemistry

9. Cobalamin
Involved in biological methyl transfer
Fe(II)
Allows AC to be converted to DC
Insulator which is doped with other elements

10. Semiconductor
Conductivity increases with T
Determined by thermodynamics (Increased entropy)
4/sqrt(3) * r
Forms ammonia from nitrogen

11. Mass Number
More soluble
N=n; n+4; n+6
An atom is missing from its usual site
A

12. n-type conductivity
Excess electrons form a donor band close in energy to the conduction band
Use low amount of current to regulate large amount
Role of Lewis base in coordination chemistry
More soluble

13. Ligand / chelator
Z
Role of Lewis base in coordination chemistry
An atom has been displaced to another site
Allows AC to be converted to DC

14. Paramagnetism
(1.33x10^-13)* ³v(A)
Magnetic moment = v(n*(n+2))
Allows AC to be converted to DC
Forms ammonia from nitrogen

15. Schottky defect
Involved in biological methyl transfer
An atom is missing from its usual site
Determined by synthetic conditions
Z

16. L.fcc
4/sqrt(2) * r
N=n; n+4; n+6
More soluble
Use low amount of current to regulate large amount

17. Valence Band
Allows AC to be converted to DC
Contain freely moving electrons
Forms ammonia from nitrogen
Use low amount of current to regulate large amount

18. Conduction band
Electron holes are formed by promotion of valence band electrons to the acceptor band
Magnetic moment = v(n*(n+2))
# of atoms of a ligand attached to a metal atom
Unfully occupied orbital - potentially overlapping

19. Transistor
Use low amount of current to regulate large amount
Allows AC to be converted to DC
Contain freely moving electrons
Z

20. Frenkel defect
Magnetic moment = v(n*(n+2))
An atom has been displaced to another site
Insulator which is doped with other elements
Involved in biological methyl transfer

21. Extrinsic semiconductor
Z
Determined by synthetic conditions
Insulator which is doped with other elements
Role of Lewis base in coordination chemistry

22. Closo-; nido-; arachno- boranes
Determined by synthetic conditions
4/sqrt(3) * r
Insulator which is doped with other elements
N=n; n+4; n+6

23. Intrinsic defect
Insulator which is doped with other elements
Determined by thermodynamics (Increased entropy)
Conductivity increases with T
Unfully occupied orbital - potentially overlapping

24. Extrinsic defect
Determined by synthetic conditions
N=n; n+4; n+6
Unfully occupied orbital - potentially overlapping
Z

25. p-type conductivity
N=n; n+4; n+6
Determined by synthetic conditions
Determined by thermodynamics (Increased entropy)
Electron holes are formed by promotion of valence band electrons to the acceptor band

26. Hapticity
Electron holes are formed by promotion of valence band electrons to the acceptor band
Determined by thermodynamics (Increased entropy)
# of atoms of a ligand attached to a metal atom
Unfully occupied orbital - potentially overlapping