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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
electrophilic addition of free radicals
alcohol
formaldehyde
weak bases
2. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
enantiomer
meso compound
diastereomers
allyl
3. Diol with hydroxyl group on same carbon
geminal
ketone
absolute configuration
acetaldehyde
4. 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-
amines
diastereomers
hydroboration
angle strain
5. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
vicinal
meso compound
acetaldehyde
6. 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
vicinal
cold potassium permanganate
triple bond
catalytic hydrogenation
7. Combustion reaction occurs through a radical process
Haloalkane
enantiomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ring flip
8. Formed by mixing different types of orbitals
cold potassium permanganate
hybridization
y- root - en -x-yne
anti conformation
9. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
primary carbon
hydroboration
polymerization
alcohol
10. Monosubstituted ethylene
quantum numbers
initiation propagation termination
Vinyl
triple bond
11. O3
achiral
weak bases
ozonolysis
diastereomers
12. What is produced when o3 with lialh4 or nabh4
pi bond
acetaldehyde
alcohol
peroxycarboxylic acid
13. One s and two p 120 degree apart
enantiomer
electrophilic addition of H2O
sp2
electrophilic addition of HX
14. Refers to the =CH2 group
meso compound
methylene
reducing
absolute configuration
15. Rotations cancel each other out therefore no optical activity
racemic mixture
geometric isomers
ring strain
anti conformation
16. Goal is to produce most stable carbocation
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17. N - l - ml - ms
formaldehyde
molecular orbital
quantum numbers
configuration
18. 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
protic solvent
cold potassium permanganate
anti conformation
reducing
19. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
formaldehyde
peroxycarboxylic acid
relative configuration
pyrolysis
20. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
electrophilic addition of X2
propionaldehyde
primary carbon
21. If a compound is able to rotate plane polarized light.
oxidizing
aldehyde
ring flip
optical activity
22. Not solvated
aprotic solvent
sp3
electrophilic addition of HX
torsional strain
23. Lowest priority group projects into the page
ionic bond
markovnikov's rule
Alkene
fischer projection
24. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
Ignored
Alkyne
markovnikov's rule
25. Carbon carbon triple bonds. Suffix-yne.
vicinal
Alkyne
oxidizing
cold potassium permanganate
26. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
carboxylic acid
primary carbon
configuration
aldehyde
27. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
lindlar's catalyst
Alkene
ozonolysis
electrophilic addition of free radicals
28. 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
allyl
configuration
pyrolysis
alcohol
29. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
enantiomer
acetaldehyde
anti conformation
30. When bond angles deviate from ideal values
angle strain
carbonyl
halogenation
amines
31. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
ozonolysis
disproportionation
Combustion
markovnikov's rule
32. Results when cyclic molecules must assume conformations that have eclipsed interactions
sp3
racemic mixture
torsional strain
lindlar's catalyst
33. Compounds with halogen
enantiomer
isomer
Haloalkane
gauche conformation
34. Most similar. same molecule only at different points in their rotation. show them with newmans projections
sp3
methylene
enantiomer
conformational isomer
35. 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
isomer
formaldehyde
triple bond
36. A = observed rotation / concentration * length
structural isomers
achiral
specific rotation
acetaldehyde
37. Arise from angle strain - torsional strian and nonbonded strain
structural isomers
ring strain
sp2
combustion - disproportionation - free - radical substitution - pyrolysis
38. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
carboxylic acid
combustion - disproportionation - free - radical substitution - pyrolysis
ozonolysis
Alkene
39. Name for ethanal
acetaldehyde
enantiomer
sp
pi bond
40. Carbonyl located in middle or somewhere in chane. Named with One
ketone
chiral center
sp
electrophile
41. Kmno4
2^n
methylene
Alkene
potassium permanganate
42. Carbon double bonded to an oxygen
basicity
carbonyl
achiral
isomer
43. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
halogenation
alkyne
pyrolysis
oxidizing
44. 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.
reducing
enantiomer
molecular orbital
relative configuration
45. Is bonded to only one other carbon atom
oxidizing
aldehyde
isomer
primary carbon
46. Charged - need electrons
structural isomers
racemic mixture
quantum numbers
electrophile
47. Nucleus lover. electron rich species that are attracked to charged atoms
vicinal
nucleophile
chiral center
alkyne
48. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
methylene
electrophilic addition
torsional strain
49. Zn/h or CH3/s with ozonolysis
reducing
electrophile
halogen
Ignored
50. 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
oxidation
fischer projection
sigma bond
allyl