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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. Lowest priority group projects into the page
oxidizing
Alkane nomenclature
specific rotation
fischer projection
2. Zn/h or CH3/s with ozonolysis
ozonolysis
enantiomer
2^n
reducing
3. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
pi bond
lindlar's catalyst
hydroboration
electrophilic addition of H2O
4. 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.
relative configuration
nonbonded strain
aprotic solvent
oxidation
5. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition of X2
electrophilic addition
pyrolysis
hybridization
6. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
diol
achiral
hybridization
markovnikov's rule
7. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
diol
Combustion
combustion - disproportionation - free - radical substitution - pyrolysis
halogen
8. Carbon carbon triple bonds. Suffix-yne.
Alkyne
basicity
vicinal
y- root - en -x-yne
9. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
Alkene
oxidizing
electrophilic addition of X2
aldehyde
10. 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
nonbonded strain
protic solvent
Alkane nomenclature
11. Diol with hydroxyl group on same carbon
geminal
mcpba
structural isomers
diol
12. Hydrocarbon with one or more carbon carbon triple bond
initiation propagation termination
Alkane nomenclature
acetaldehyde
alkyne
13. 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
ketone
catalytic hydrogenation
eclipsed conformation
initiation propagation termination
14. Sharing of electron between atoms
covalent bond
protic solvent
ketone
gauche conformation
15. A sigma bond and two pi bonds
triple bond
not ignored
carboxylic acid
aldehyde
16. Goal is to produce most stable carbocation
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17. Object that is not superimposable upon mirror image
hot - acidic potassium permanganate
markovnikov's rule
chiral
weak bases
18. No double bonds. it has the maximum number of hydrogens.
ionic bond
propionaldehyde
Alkene
saturated hydrocarbon
19. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
diastereomers
absolute configuration
hydroboration
disproportionation
20. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
carbonyl
aldehyde
cold potassium permanganate
absolute configuration
21. Steps of free radical substitution
initiation propagation termination
Alkane
methylene
oxidizing
22. Share molecular formula but have different chemical and physical properties
electrophilic addition of free radicals
protic solvent
structural isomers
geminal
23. Methyl are 60 degrees apart. kinda stable
polymerization
lindlar's catalyst
Alkane
gauche conformation
24. Transfer of electrions from one atome to another
ketone
cold potassium permanganate
aldehyde
ionic bond
25. Diols with hydroxyl group on adjacent carbon
halogen
configuration
electrophilic addition
vicinal
26. 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
initiation propagation termination
markovnikov's rule
protic solvent
fischer projection
27. If reagent has a bunch of oxygen
oxidation
aprotic solvent
aldehyde
eclipsed conformation
28. Charged - need electrons
electrophilic addition of H2O
Ignored
electrophile
peroxycarboxylic acid
29. Use the Greek root for the number of carbons followed by the ending - - ane
chiral
electrophile
Alkane nomenclature
electrophilic addition
30. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
enantiomer
saturated hydrocarbon
formaldehyde
geometric isomers
31. Is bonded to only one other carbon atom
primary carbon
2^n
molecular orbital
amines
32. Arise from angle strain - torsional strian and nonbonded strain
aldehyde
ring strain
chiral
achiral
33. Combustion reaction occurs through a radical process
propionaldehyde
electrophilic addition of HX
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ring flip
34. If a compound is able to rotate plane polarized light.
enantiomer
diastereomers
quantum numbers
optical activity
35. What is produced when o3 with lialh4 or nabh4
disproportionation
potassium permanganate
enantiomer
alcohol
36. How many stereoisomers can a molecule have with n chiral centers
2^n
ketone
Alkane
Acetylene
37. 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.
carbonyl
conformational isomer
relative configuration
molecular orbital
38. When bond angles deviate from ideal values
ethers
angle strain
carboxylic acid
enantiomer
39. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
torsional strain
triple bond
pyrolysis
pi bond
40. Highest energy no separation. or 120 separation.
polymerization
eclipsed conformation
combustion - disproportionation - free - radical substitution - pyrolysis
oxidation
41. Carbonyl located in middle or somewhere in chane. Named with One
ketone
sp
pyrolysis
saturated hydrocarbon
42. Name for propanal
propionaldehyde
halogen
isomer
ozonolysis
43. Name for mathanal
Alkyne
ketone
fischer projection
formaldehyde
44. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
saturated hydrocarbon
halogenation
Alkane nomenclature
peroxycarboxylic acid
45. O3
methylene
angle strain
ozonolysis
sp2
46. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
fischer projection
isomer
Alkene
hot - acidic potassium permanganate
47. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
isomer
absolute configuration
Ignored
basicity
48. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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49. One s and three p orbitals
potassium permanganate
sp3
gauche conformation
hybridization
50. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
chiral
Alkyne
catalytic hydrogenation
enantiomer