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. Schottky defect
Determined by thermodynamics (Increased entropy)
More soluble
Fe(II)
An atom is missing from its usual site

2. Mass Number
(1.33x10^-13)* ³v(A)
Role of Lewis base in coordination chemistry
A
Fe(II)

3. n-type conductivity
Involved in biological methyl transfer
Allows AC to be converted to DC
Contain freely moving electrons
Excess electrons form a donor band close in energy to the conduction band

4. p-n junction
Unfully occupied orbital - potentially overlapping
Allows AC to be converted to DC
An atom has been displaced to another site
Contain freely moving electrons

5. Conduction band
Magnetic moment = v(n*(n+2))
N=n; n+4; n+6
Unfully occupied orbital - potentially overlapping
Involved in biological methyl transfer

6. L.bcc
A
Z
4/sqrt(3) * r
# of atoms of a ligand attached to a metal atom

7. Larger difference in atomic radii
Use low amount of current to regulate large amount
More soluble
Involved in biological methyl transfer
Excess electrons form a donor band close in energy to the conduction band

8. Closo-; nido-; arachno- boranes
More soluble
An atom is missing from its usual site
Z
N=n; n+4; n+6

9. Paramagnetism
Allows AC to be converted to DC
Magnetic moment = v(n*(n+2))
Determined by synthetic conditions
Insulator which is doped with other elements

10. Ferrous
An atom is missing from its usual site
Electron holes are formed by promotion of valence band electrons to the acceptor band
# of atoms of a ligand attached to a metal atom
Fe(II)

11. L.fcc
Involved in biological methyl transfer
4/sqrt(2) * r
# of atoms of a ligand attached to a metal atom
Fe(II)

12. Nuclear Radius
Role of Lewis base in coordination chemistry
Conductivity increases with T
Fe(II)
(1.33x10^-13)* ³v(A)

13. Extrinsic semiconductor
Conductivity increases with T
Insulator which is doped with other elements
Forms ammonia from nitrogen
A

14. Hapticity
An atom has been displaced to another site
N=n; n+4; n+6
# of atoms of a ligand attached to a metal atom
4/sqrt(3) * r

15. Cobalamin
An atom is missing from its usual site
N=n; n+4; n+6
Allows AC to be converted to DC
Involved in biological methyl transfer

16. Frenkel defect
Magnetic moment = v(n*(n+2))
4/sqrt(3) * r
Insulator which is doped with other elements
An atom has been displaced to another site

17. Ligand / chelator
An atom is missing from its usual site
Z
Determined by synthetic conditions
Role of Lewis base in coordination chemistry

18. Alkali metals
Recovered by electrolysis of molten salt
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

19. Semiconductor
Conductivity increases with T
4/sqrt(3) * r
Use low amount of current to regulate large amount
An atom has been displaced to another site

20. Transistor
Use low amount of current to regulate large amount
N=n; n+4; n+6
Determined by thermodynamics (Increased entropy)
An atom is missing from its usual site

21. Extrinsic defect
Recovered by electrolysis of molten salt
Determined by synthetic conditions
An atom has been displaced to another site
An atom is missing from its usual site

22. Haber Process
Z
Forms ammonia from nitrogen
# of atoms of a ligand attached to a metal atom
Determined by synthetic conditions

23. Atomic Number
Z
More soluble
Unfully occupied orbital - potentially overlapping
N=n; n+4; n+6

24. p-type conductivity
Z
Magnetic moment = v(n*(n+2))
Electron holes are formed by promotion of valence band electrons to the acceptor band
Use low amount of current to regulate large amount

25. Valence Band
Fe(II)
Unfully occupied orbital - potentially overlapping
Insulator which is doped with other elements
Contain freely moving electrons

26. Intrinsic defect
Conductivity increases with T
Z
4/sqrt(2) * r
Determined by thermodynamics (Increased entropy)