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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. Name for mathanal
oxidizing
gauche conformation
covalent bond
formaldehyde
2. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
torsional strain
pi bond
oxidizing
racemic mixture
3. Two hydroxyl groups
pi bond
halogenation
diol
racemic mixture
4. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
ozonolysis
specific rotation
alkyne
5. What is produced when o3 with lialh4 or nabh4
alcohol
racemic mixture
absolute configuration
peroxycarboxylic acid
6. Carbon carbon triple bonds. Suffix-yne.
Alkyne
aldehyde
enantiomer
electrophilic addition
7. Transfer of electrions from one atome to another
isomer
torsional strain
ionic bond
pyrolysis
8. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
nucleophile
protic solvent
y- root - en -x-yne
disproportionation
9. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
sp2
specific rotation
lindlar's catalyst
10. What are the best leaving groups?
saturated hydrocarbon
weak bases
disproportionation
molecular orbital
11. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
catalytic hydrogenation
Alkyne
ozonolysis
enantiomer
12. Carbonyl located in middle or somewhere in chane. Named with One
basicity
y- root - en -x-yne
ketone
Haloalkane
13. One s and three p orbitals
sp3
eclipsed conformation
electrophilic addition of free radicals
hot - acidic potassium permanganate
14. 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
Haloalkane
anti conformation
2^n
protic solvent
15. A = observed rotation / concentration * length
molecular orbital
specific rotation
electrophilic addition of X2
combustion - disproportionation - free - radical substitution - pyrolysis
16. 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
electrophilic addition of H2O
pyrolysis
pi bond
Haloalkane
17. Is bonded to only one other carbon atom
eclipsed conformation
primary carbon
structural isomers
alkyne
18. Share molecular formula but have different chemical and physical properties
structural isomers
hybridization
polymerization
y- root - en -x-yne
19. Common name for ethyne
isomer
saturated hydrocarbon
y- root - en -x-yne
Acetylene
20. Arise from angle strain - torsional strian and nonbonded strain
anti conformation
ring strain
pyrolysis
aldehyde
21. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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22. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
pi bond
hydroboration
carboxylic acid
sp3
23. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
potassium permanganate
initiation propagation termination
allyl
relative configuration
24. 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.
pyrolysis
nonbonded strain
reducing
protic solvent
25. Diol with hydroxyl group on same carbon
geminal
sp3
meso compound
halogenation
26. Lowest priority group projects into the page
enantiomer
fischer projection
electrophilic addition of H2O
anti conformation
27. Combustion reaction occurs through a radical process
formaldehyde
Ignored
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of free radicals
28. If reagent has a bunch of oxygen
amines
gauche conformation
oxidation
propionaldehyde
29. Carbon with four different substituents and lack a plane of symmetry
chiral center
electrophile
geminal
ring strain
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
chiral
oxidation
Alkyne
catalytic hydrogenation
31. Object that is not superimposable upon mirror image
racemic mixture
acetaldehyde
geminal
chiral
32. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
ketone
electrophilic addition
pi bond
diol
33. M - chloroperoxybenzoic acid
electrophilic addition
mcpba
geometric isomers
conformational isomer
34. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
electrophilic addition of free radicals
carbonyl
allyl
saturated hydrocarbon
35. Highest energy no separation. or 120 separation.
eclipsed conformation
polymerization
ring strain
ionic bond
36. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
ozonolysis
electrophilic addition of H2O
isomer
formaldehyde
37. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
ethers
torsional strain
sigma bond
enantiomer
38. Sharing of electron between atoms
stereoisomers
covalent bond
configuration
ionic bond
39. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
mcpba
cold potassium permanganate
Alkene
diastereomers
40. Most favorable of staggared conformations
ethers
anti conformation
sigma bond
weak bases
41. A molecule with an internal plane of symmetry
Combustion
ozonolysis
meso compound
fischer projection
42. Compounds with halogen
Haloalkane
aldehyde
conformational isomer
ethers
43. Hydrocarbon with one or more carbon carbon triple bond
alkyne
quantum numbers
Alkene
relative configuration
44. Diols with hydroxyl group on adjacent carbon
markovnikov's rule
absolute configuration
vicinal
chiral
45. Kmno4
conformational isomer
triple bond
Vinyl
potassium permanganate
46. O3
basicity
lindlar's catalyst
ozonolysis
relative configuration
47. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
sigma bond
Haloalkane
hot - acidic potassium permanganate
enantiomer
48. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
electrophilic addition
electrophilic addition of H2O
stereoisomers
peroxycarboxylic acid
49. Methyl are 60 degrees apart. kinda stable
enantiomer
ozonolysis
gauche conformation
racemic mixture
50. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
markovnikov's rule
relative configuration
Combustion
stereoisomers