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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. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
carbonyl
pyrolysis
electrophilic addition of X2
Combustion
2. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
markovnikov's rule
sigma bond
ozonolysis
pyrolysis
3. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
ionic bond
reducing
oxidizing
specific rotation
4. N - l - ml - ms
fischer projection
quantum numbers
primary carbon
halogen
5. O3
enantiomer
Alkene
electrophile
ozonolysis
6. Kmno4
primary carbon
methylene
carboxylic acid
potassium permanganate
7. Non mirror image of configurational isomers. cis and trans alkenes are them. possible when a molecule has two or more stereogenic centers that differ at some but not alll of the centers. they require multiple chiral centers.
sp2
diastereomers
Vinyl
ozonolysis
8. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
Ignored
hydroboration
relative configuration
markovnikov's rule
9. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
specific rotation
initiation propagation termination
weak bases
10. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
y- root - en -x-yne
electrophile
optical activity
geometric isomers
11. Zn/h or CH3/s with ozonolysis
sigma bond
weak bases
reducing
basicity
12. Di - tri - t - sec - n -
disproportionation
alkyne
Ignored
oxidation
13. What are the best leaving groups?
aprotic solvent
Combustion
diol
weak bases
14. 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
fischer projection
gauche conformation
allyl
pyrolysis
15. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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16. 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
enantiomer
markovnikov's rule
pi bond
17. Not solvated
markovnikov's rule
aprotic solvent
hot - acidic potassium permanganate
diol
18. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
stereoisomers
hot - acidic potassium permanganate
sigma bond
19. When bond angles deviate from ideal values
structural isomers
conformational isomer
enantiomer
angle strain
20. Is bonded to only one other carbon atom
combustion - disproportionation - free - radical substitution - pyrolysis
catalytic hydrogenation
primary carbon
basicity
21. Chain of carbons connected by single bonds with hydrogen atoms attached.
ring flip
optical activity
combustion - disproportionation - free - radical substitution - pyrolysis
Alkane
22. Goal is to produce most stable carbocation
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23. Hydrocarbon with one or more carbon carbon triple bond
meso compound
saturated hydrocarbon
alkyne
acetaldehyde
24. What is produced when o3 with lialh4 or nabh4
eclipsed conformation
vicinal
markovnikov's rule
alcohol
25. Most similar. same molecule only at different points in their rotation. show them with newmans projections
weak bases
gauche conformation
conformational isomer
fischer projection
26. One s and three p orbitals
Alkane
acetaldehyde
sp3
specific rotation
27. Compounds with halogen
triple bond
not ignored
Haloalkane
ozonolysis
28. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
ketone
cold potassium permanganate
racemic mixture
carbonyl
29. 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
nucleophile
alcohol
basicity
protic solvent
30. Results when cyclic molecules must assume conformations that have eclipsed interactions
hot - acidic potassium permanganate
torsional strain
enantiomer
sp2
31. Monosubstituted ethylene
configuration
Combustion
stereoisomers
Vinyl
32. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
ring flip
catalytic hydrogenation
Vinyl
electrophilic addition
33. Transfer of electrions from one atome to another
structural isomers
isomer
ionic bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
34. Common name for ethyne
racemic mixture
optical activity
Alkene
Acetylene
35. Diols with hydroxyl group on adjacent carbon
meso compound
pi bond
halogenation
vicinal
36. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
carbonyl
Ignored
polymerization
y- root - en -x-yne
37. 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
aprotic solvent
allyl
ring strain
Alkane nomenclature
38. Steps of free radical substitution
Alkene
Ignored
initiation propagation termination
carbonyl
39. Name for ethanal
ring flip
primary carbon
acetaldehyde
geminal
40. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
hybridization
reducing
Alkene
enantiomer
41. Carbon with four different substituents and lack a plane of symmetry
chiral center
quantum numbers
triple bond
ethers
42. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
sigma bond
hot - acidic potassium permanganate
covalent bond
not ignored
43. Combustion reaction occurs through a radical process
gauche conformation
C3H8 + 5O2 = 3CO2 + 4H2O + heat
relative configuration
cold potassium permanganate
44. Functionality is specified by alkoxy- prefix. ROR
ethers
electrophilic addition of H2O
alcohol
conformational isomer
45. Carbon double bonded to an oxygen
initiation propagation termination
oxidizing
carbonyl
basicity
46. A = observed rotation / concentration * length
specific rotation
enantiomer
initiation propagation termination
mcpba
47. 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
Acetylene
enantiomer
optical activity
cold potassium permanganate
48. 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-
meso compound
electrophilic addition of free radicals
chiral
amines
49. Carbonyl located in middle or somewhere in chane. Named with One
lindlar's catalyst
ketone
quantum numbers
ring flip
50. Rotations cancel each other out therefore no optical activity
propionaldehyde
carboxylic acid
racemic mixture
nonbonded strain