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MCAT Organic Chemistry
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Subjects
:
mcat
,
science
Instructions:
Answer 50 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. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
triple bond
hot - acidic potassium permanganate
chiral
diol
2. Arise from angle strain - torsional strian and nonbonded strain
sp
ring strain
configuration
isomer
3. F - CL - Br - I
ionic bond
electrophilic addition of H2O
initiation propagation termination
halogen
4. Two hydroxyl groups
quantum numbers
electrophilic addition of X2
diol
allyl
5. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
carbonyl
Alkene
allyl
not ignored
6. Carbon double bonded to an oxygen
chiral center
molecular orbital
2^n
carbonyl
7. Compounds with halogen
Haloalkane
isomer
protic solvent
oxidizing
8. Most favorable of staggared conformations
isomer
anti conformation
potassium permanganate
relative configuration
9. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
Alkane nomenclature
ozonolysis
absolute configuration
anti conformation
10. Sharing of electron between atoms
saturated hydrocarbon
angle strain
electrophilic addition of free radicals
covalent bond
11. When bond angles deviate from ideal values
triple bond
mcpba
Alkane
angle strain
12. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
catalytic hydrogenation
2^n
achiral
13. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
electrophile
electrophilic addition of HX
2^n
14. What are the best leaving groups?
alcohol
weak bases
Alkane nomenclature
halogen
15. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
fischer projection
markovnikov's rule
Alkyne
16. Name for mathanal
alkyne
formaldehyde
racemic mixture
carboxylic acid
17. Spatial arrangement of the atoms or groups of a sterioisomer
propionaldehyde
configuration
amines
Ignored
18. Diols with hydroxyl group on adjacent carbon
vicinal
geometric isomers
chiral
optical activity
19. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-
combustion - disproportionation - free - radical substitution - pyrolysis
amines
achiral
Alkyne
20. One s and two p 120 degree apart
geometric isomers
sp2
electrophilic addition of H2O
ethers
21. Most similar. same molecule only at different points in their rotation. show them with newmans projections
mcpba
ring strain
hot - acidic potassium permanganate
conformational isomer
22. Kmno4
hot - acidic potassium permanganate
peroxycarboxylic acid
potassium permanganate
acetaldehyde
23. Same molecular formula but different structure
isomer
reducing
conformational isomer
ethers
24. Combustion reaction occurs through a radical process
C3H8 + 5O2 = 3CO2 + 4H2O + heat
conformational isomer
achiral
triple bond
25. A sigma bond and two pi bonds
alkyne
triple bond
weak bases
halogenation
26. Formed by mixing different types of orbitals
amines
Ignored
optical activity
hybridization
27. Di - tri - t - sec - n -
Ignored
protic solvent
optical activity
disproportionation
28. Functionality is specified by alkoxy- prefix. ROR
conformational isomer
hot - acidic potassium permanganate
ethers
not ignored
29. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
quantum numbers
achiral
amines
electrophilic addition of H2O
30. Rotations cancel each other out therefore no optical activity
lindlar's catalyst
covalent bond
racemic mixture
aprotic solvent
31. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
pi bond
alkyne
sp
mcpba
32. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
not ignored
molecular orbital
relative configuration
aprotic solvent
33. A molecule with an internal plane of symmetry
ozonolysis
optical activity
sp
meso compound
34. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
sp
protic solvent
pi bond
2^n
35. Transfer of electrions from one atome to another
methylene
cold potassium permanganate
ionic bond
configuration
36. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest
diol
halogen
allyl
halogenation
37. Highest energy no separation. or 120 separation.
Acetylene
ethers
eclipsed conformation
chiral center
38. What is produced when o3 with lialh4 or nabh4
alcohol
chiral
carbonyl
catalytic hydrogenation
39. O3
ozonolysis
eclipsed conformation
achiral
methylene
40. Is bonded to only one other carbon atom
primary carbon
hydroboration
vicinal
Vinyl
41. If reagent has a bunch of oxygen
lindlar's catalyst
ketone
oxidation
Alkyne
42. If a compound is able to rotate plane polarized light.
quantum numbers
allyl
optical activity
polymerization
43. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
lindlar's catalyst
electrophilic addition of X2
carboxylic acid
disproportionation
44. Goal is to produce most stable carbocation
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45. Carbonyl located in middle or somewhere in chane. Named with One
specific rotation
allyl
ketone
potassium permanganate
46. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.
Alkene
nonbonded strain
ionic bond
optical activity
47. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
halogenation
anti conformation
meso compound
electrophilic addition
48. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
stereoisomers
ozonolysis
oxidation
Alkyne
49. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
ring strain
polymerization
racemic mixture
electrophilic addition
50. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
weak bases
Combustion
electrophile
sp2
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