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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. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
catalytic hydrogenation
optical activity
geometric isomers
relative configuration
2. F - CL - Br - I
sp3
basicity
halogen
diastereomers
3. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
allyl
ring strain
pi bond
pyrolysis
4. Most favorable of staggared conformations
electrophilic addition of H2O
anti conformation
sp3
diol
5. Carbon double bonded to an oxygen
disproportionation
aprotic solvent
carbonyl
oxidation
6. 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.
quantum numbers
eclipsed conformation
markovnikov's rule
molecular orbital
7. What is produced when o3 with lialh4 or nabh4
disproportionation
halogen
meso compound
alcohol
8. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
electrophilic addition of HX
carbonyl
saturated hydrocarbon
sp
9. Not solvated
chiral
aprotic solvent
initiation propagation termination
hot - acidic potassium permanganate
10. Common name for ethyne
geminal
specific rotation
eclipsed conformation
Acetylene
11. How many stereoisomers can a molecule have with n chiral centers
ring flip
2^n
fischer projection
absolute configuration
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
ethers
absolute configuration
pyrolysis
nonbonded strain
13. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
weak bases
absolute configuration
halogenation
hot - acidic potassium permanganate
14. O3
specific rotation
ozonolysis
Alkane
diol
15. Most similar. same molecule only at different points in their rotation. show them with newmans projections
pyrolysis
alkyne
allyl
conformational isomer
16. Arise from angle strain - torsional strian and nonbonded strain
diol
combustion - disproportionation - free - radical substitution - pyrolysis
catalytic hydrogenation
ring strain
17. Alphabetical order of alkane rxn
hybridization
C3H8 + 5O2 = 3CO2 + 4H2O + heat
combustion - disproportionation - free - radical substitution - pyrolysis
Alkane
18. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
hot - acidic potassium permanganate
basicity
formaldehyde
2^n
19. Combustion reaction occurs through a radical process
C3H8 + 5O2 = 3CO2 + 4H2O + heat
alkyne
ionic bond
isomer
20. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
eclipsed conformation
hot - acidic potassium permanganate
aldehyde
Alkene
21. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
cold potassium permanganate
basicity
saturated hydrocarbon
quantum numbers
22. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
gauche conformation
aldehyde
amines
Combustion
23. Share molecular formula but have different chemical and physical properties
fischer projection
saturated hydrocarbon
aprotic solvent
structural isomers
24. Use the Greek root for the number of carbons followed by the ending - - ane
gauche conformation
Haloalkane
Alkane nomenclature
lindlar's catalyst
25. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
configuration
ring flip
protic solvent
electrophilic addition of H2O
26. 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.
diastereomers
sigma bond
aprotic solvent
pi bond
27. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
optical activity
Alkene
Alkane nomenclature
aldehyde
28. Compounds with halogen
amines
Alkane
Haloalkane
achiral
29. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
electrophilic addition of X2
halogenation
fischer projection
Alkene
30. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
hybridization
isomer
conformational isomer
31. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
sp3
oxidizing
allyl
optical activity
32. When boat flips
chiral center
meso compound
mcpba
ring flip
33. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
mcpba
ring flip
ozonolysis
aprotic solvent
34. Chain of carbons connected by single bonds with hydrogen atoms attached.
torsional strain
y- root - en -x-yne
enantiomer
Alkane
35. One s and three p orbitals
isomer
sp3
relative configuration
formaldehyde
36. Highest energy no separation. or 120 separation.
saturated hydrocarbon
fischer projection
covalent bond
eclipsed conformation
37. Two hydroxyl groups
sp2
diol
nucleophile
protic solvent
38. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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39. Functionality is specified by alkoxy- prefix. ROR
Alkene
molecular orbital
ethers
electrophilic addition of free radicals
40. Name for ethanal
vicinal
acetaldehyde
saturated hydrocarbon
conformational isomer
41. Lowest priority group projects into the page
aprotic solvent
ethers
fischer projection
lindlar's catalyst
42. If reagent has a bunch of oxygen
molecular orbital
electrophilic addition
relative configuration
oxidation
43. Name for propanal
ozonolysis
halogen
propionaldehyde
diastereomers
44. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
geometric isomers
pi bond
sigma bond
quantum numbers
45. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
hot - acidic potassium permanganate
hybridization
polymerization
hydroboration
46. 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
triple bond
allyl
electrophilic addition
disproportionation
47. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
halogen
nucleophile
cold potassium permanganate
48. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
absolute configuration
electrophilic addition of X2
chiral
Combustion
49. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
ring flip
pi bond
peroxycarboxylic acid
absolute configuration
50. Object that is not superimposable upon mirror image
polymerization
oxidizing
disproportionation
chiral