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Test your basic knowledge |
MCAT Organic Chemistry
Start Test
Study First
Subjects
:
mcat
,
science
Instructions:
Answer 50 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. Arise from angle strain - torsional strian and nonbonded strain
nucleophile
Haloalkane
ring strain
hot - acidic potassium permanganate
2. Lowest priority group projects into the page
ketone
ring strain
fischer projection
alkyne
3. Occur when a molecule is broken down by heat. used to reduce the avverage molecular weight of heavy oils. c - c - bonds are cleave dand make small chain alkyl radicals that recombine to form different alkanes
protic solvent
acetaldehyde
amines
pyrolysis
4. Steps of free radical substitution
Alkane
saturated hydrocarbon
initiation propagation termination
sp
5. Zn/h or CH3/s with ozonolysis
reducing
covalent bond
hot - acidic potassium permanganate
diol
6. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
molecular orbital
ionic bond
potassium permanganate
disproportionation
7. Diol with hydroxyl group on same carbon
pi bond
formaldehyde
electrophilic addition of X2
geminal
8. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
ring flip
hybridization
sp
acetaldehyde
9. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
catalytic hydrogenation
Combustion
weak bases
geminal
10. Object that is not superimposable upon mirror image
chiral
alkyne
ozonolysis
Vinyl
11. Name for ethanal
carboxylic acid
acetaldehyde
nucleophile
sp3
12. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition
disproportionation
ring flip
lindlar's catalyst
13. Share molecular formula but have different chemical and physical properties
conformational isomer
methylene
cold potassium permanganate
structural isomers
14. Highest energy no separation. or 120 separation.
amines
halogen
gauche conformation
eclipsed conformation
15. Chain of carbons connected by single bonds with hydrogen atoms attached.
hydroboration
sp
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Alkane
16. Alphabetical order of alkane rxn
geometric isomers
protic solvent
initiation propagation termination
combustion - disproportionation - free - radical substitution - pyrolysis
17. One s and two p 120 degree apart
electrophilic addition of HX
sp2
aldehyde
eclipsed conformation
18. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
electrophile
meso compound
methylene
absolute configuration
19. Formed by mixing different types of orbitals
racemic mixture
hybridization
Alkyne
pyrolysis
20. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
electrophilic addition of HX
optical activity
amines
21. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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22. Methyl are 60 degrees apart. kinda stable
conformational isomer
polymerization
optical activity
gauche conformation
23. Same molecular formula but different structure
eclipsed conformation
triple bond
isomer
halogenation
24. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
C3H8 + 5O2 = 3CO2 + 4H2O + heat
allyl
basicity
ring flip
25. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
y- root - en -x-yne
carboxylic acid
racemic mixture
quantum numbers
26. Combustion reaction occurs through a radical process
markovnikov's rule
C3H8 + 5O2 = 3CO2 + 4H2O + heat
halogenation
electrophilic addition of free radicals
27. How many stereoisomers can a molecule have with n chiral centers
weak bases
2^n
acetaldehyde
allyl
28. 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
hybridization
electrophilic addition of HX
electrophilic addition of free radicals
allyl
29. Hydrocarbon with one or more carbon carbon triple bond
pi bond
Alkane nomenclature
primary carbon
alkyne
30. Reducing an alkene by adding molecular hydrogen to double bond with aid of metal catalyst. e.g. pt - pd - ni. takes place on surface of metal so it does syn addition
anti conformation
Alkane
relative configuration
catalytic hydrogenation
31. Diols with hydroxyl group on adjacent carbon
ethers
absolute configuration
vicinal
Alkyne
32. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
sp2
achiral
hot - acidic potassium permanganate
alkyne
33. Not solvated
electrophilic addition of X2
mcpba
aprotic solvent
enantiomer
34. Use the Greek root for the number of carbons followed by the ending - - ane
sp3
geometric isomers
peroxycarboxylic acid
Alkane nomenclature
35. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
torsional strain
ethers
peroxycarboxylic acid
2^n
36. Carbon carbon triple bonds. Suffix-yne.
Vinyl
Alkyne
relative configuration
weak bases
37. What is produced when o3 with lialh4 or nabh4
alcohol
sp3
structural isomers
sp
38. When two atomic orbitals combine. obtained mathematically by adding or subtracting wave functions. if sings are the same - make bonding - if different - less stable antibonding.
relative configuration
propionaldehyde
molecular orbital
carbonyl
39. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
racemic mixture
chiral center
methylene
electrophilic addition of free radicals
40. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
gauche conformation
saturated hydrocarbon
hot - acidic potassium permanganate
polymerization
41. When boat flips
ring flip
electrophile
protic solvent
conformational isomer
42. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
sp3
achiral
aldehyde
Vinyl
43. Monosubstituted ethylene
Vinyl
electrophilic addition of free radicals
electrophilic addition of X2
ring strain
44. Is bonded to only one other carbon atom
polymerization
sp2
Alkene
primary carbon
45. A sigma bond and two pi bonds
triple bond
absolute configuration
sp
electrophilic addition
46. Spatial arrangement of the atoms or groups of a sterioisomer
Ignored
eclipsed conformation
configuration
angle strain
47. A molecule with an internal plane of symmetry
vicinal
ketone
structural isomers
meso compound
48. Common name for ethyne
triple bond
Acetylene
pyrolysis
aprotic solvent
49. Nucleus lover. electron rich species that are attracked to charged atoms
triple bond
nucleophile
y- root - en -x-yne
halogen
50. Goal is to produce most stable carbocation
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