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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. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
ozonolysis
electrophilic addition of HX
disproportionation
vicinal
2. 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
electrophile
allyl
markovnikov's rule
molecular orbital
3. N - l - ml - ms
quantum numbers
covalent bond
anti conformation
protic solvent
4. No double bonds. it has the maximum number of hydrogens.
saturated hydrocarbon
electrophilic addition of X2
triple bond
isomer
5. Not solvated
fischer projection
aprotic solvent
polymerization
electrophilic addition of HX
6. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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7. O3
mcpba
ozonolysis
optical activity
vicinal
8. Is bonded to only one other carbon atom
ionic bond
primary carbon
cold potassium permanganate
nonbonded strain
9. One s and two p 120 degree apart
sp2
propionaldehyde
pyrolysis
Alkane
10. Carbon double bonded to an oxygen
torsional strain
carboxylic acid
carbonyl
catalytic hydrogenation
11. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
markovnikov's rule
diol
ozonolysis
hydroboration
12. 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
ring strain
geometric isomers
pyrolysis
alcohol
13. Most similar. same molecule only at different points in their rotation. show them with newmans projections
halogen
conformational isomer
hydroboration
pyrolysis
14. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
electrophilic addition
ring flip
Acetylene
15. Di - tri - t - sec - n -
ring flip
nucleophile
electrophile
Ignored
16. Moleculse that have the opposite configuration at their one chiral center. or if multiple chiral centers - must have the opposite configuration at every one of their chiral centers to be enantiomers. identical physical properties and much of the same
ethers
ketone
enantiomer
disproportionation
17. Common name for ethyne
lindlar's catalyst
vicinal
hot - acidic potassium permanganate
Acetylene
18. Kmno4
lindlar's catalyst
potassium permanganate
ketone
stereoisomers
19. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable
markovnikov's rule
enantiomer
alcohol
protic solvent
20. 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.
molecular orbital
oxidation
Ignored
structural isomers
21. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
acetaldehyde
pi bond
lindlar's catalyst
peroxycarboxylic acid
22. Iso - neo - cyclo
ring flip
peroxycarboxylic acid
not ignored
ionic bond
23. Highest energy no separation. or 120 separation.
Alkane
sp2
stereoisomers
eclipsed conformation
24. Most favorable of staggared conformations
geminal
electrophilic addition of X2
anti conformation
Combustion
25. Two hydroxyl groups
stereoisomers
diol
primary carbon
mcpba
26. Name for ethanal
vicinal
catalytic hydrogenation
acetaldehyde
nucleophile
27. Same molecular formula but different structure
polymerization
isomer
oxidizing
peroxycarboxylic acid
28. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of X2
relative configuration
enantiomer
electrophilic addition of H2O
29. Share molecular formula but have different chemical and physical properties
initiation propagation termination
angle strain
electrophile
structural isomers
30. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
geometric isomers
alkyne
ozonolysis
aprotic solvent
31. When boat flips
diol
aldehyde
quantum numbers
ring flip
32. A = observed rotation / concentration * length
2^n
sp
specific rotation
Alkene
33. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
ozonolysis
hot - acidic potassium permanganate
ring strain
meso compound
34. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
aprotic solvent
quantum numbers
pyrolysis
polymerization
35. Lowest priority group projects into the page
oxidizing
fischer projection
hot - acidic potassium permanganate
ring strain
36. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
electrophilic addition of X2
propionaldehyde
peroxycarboxylic acid
Combustion
37. 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
ring strain
catalytic hydrogenation
sp
2^n
38. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
allyl
aldehyde
polymerization
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
primary carbon
electrophilic addition of free radicals
halogenation
basicity
40. 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.
fischer projection
nonbonded strain
ozonolysis
lindlar's catalyst
41. Nucleus lover. electron rich species that are attracked to charged atoms
markovnikov's rule
saturated hydrocarbon
sp3
nucleophile
42. Diol with hydroxyl group on same carbon
initiation propagation termination
geminal
reducing
pyrolysis
43. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
absolute configuration
Haloalkane
stereoisomers
polymerization
44. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
geometric isomers
relative configuration
basicity
gauche conformation
45. Chain of carbons connected by single bonds with hydrogen atoms attached.
allyl
ketone
Alkane
weak bases
46. Alphabetical order of alkane rxn
electrophilic addition
diastereomers
alkyne
combustion - disproportionation - free - radical substitution - pyrolysis
47. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
nonbonded strain
sp3
pi bond
enantiomer
48. What are the best leaving groups?
weak bases
halogenation
angle strain
Acetylene
49. Combustion reaction occurs through a radical process
C3H8 + 5O2 = 3CO2 + 4H2O + heat
basicity
electrophilic addition of H2O
structural isomers
50. If reagent has a bunch of oxygen
torsional strain
halogenation
oxidation
amines