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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.
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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. Compounds with halogen
isomer
anti conformation
Haloalkane
quantum numbers
2. 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
carbonyl
pi bond
enantiomer
aprotic solvent
3. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
isomer
triple bond
initiation propagation termination
4. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
alcohol
alkyne
electrophilic addition of H2O
5. Not solvated
halogenation
aprotic solvent
absolute configuration
structural isomers
6. Arise from angle strain - torsional strian and nonbonded strain
electrophilic addition of H2O
pi bond
fischer projection
ring strain
7. 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
pyrolysis
diastereomers
peroxycarboxylic acid
carboxylic acid
8. Common name for ethyne
sigma bond
Acetylene
halogenation
oxidizing
9. Refers to the =CH2 group
eclipsed conformation
methylene
configuration
ethers
10. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
enantiomer
electrophilic addition
electrophilic addition of X2
ionic bond
11. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
nucleophile
achiral
relative configuration
molecular orbital
12. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
fischer projection
meso compound
Acetylene
13. Two hydroxyl groups
diol
propionaldehyde
2^n
enantiomer
14. Alphabetical order of alkane rxn
peroxycarboxylic acid
combustion - disproportionation - free - radical substitution - pyrolysis
diol
electrophilic addition
15. Spatial arrangement of the atoms or groups of a sterioisomer
combustion - disproportionation - free - radical substitution - pyrolysis
Ignored
vicinal
configuration
16. Same molecular formula but different structure
anti conformation
disproportionation
quantum numbers
isomer
17. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
configuration
nucleophile
halogenation
conformational isomer
18. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
optical activity
quantum numbers
halogen
absolute configuration
19. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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20. Chain of carbons connected by single bonds with hydrogen atoms attached.
oxidation
absolute configuration
electrophile
Alkane
21. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
nucleophile
hydroboration
combustion - disproportionation - free - radical substitution - pyrolysis
racemic mixture
22. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
carbonyl
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of X2
achiral
23. Most similar. same molecule only at different points in their rotation. show them with newmans projections
Acetylene
conformational isomer
configuration
Ignored
24. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane
relative configuration
combustion - disproportionation - free - radical substitution - pyrolysis
Alkane nomenclature
25. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
combustion - disproportionation - free - radical substitution - pyrolysis
Alkene
electrophilic addition of HX
ketone
26. Is bonded to only one other carbon atom
oxidation
primary carbon
sp
sp2
27. Formed by mixing different types of orbitals
hot - acidic potassium permanganate
hybridization
electrophilic addition of free radicals
structural isomers
28. One s and three p orbitals
sp3
Ignored
stereoisomers
conformational isomer
29. 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-
ozonolysis
C3H8 + 5O2 = 3CO2 + 4H2O + heat
amines
Haloalkane
30. Diol with hydroxyl group on same carbon
ionic bond
geminal
markovnikov's rule
pyrolysis
31. 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.
enantiomer
fischer projection
nonbonded strain
Combustion
32. Functionality is specified by alkoxy- prefix. ROR
nonbonded strain
geminal
Alkane nomenclature
ethers
33. Kmno4
potassium permanganate
enantiomer
Vinyl
sp
34. Carbonyl located in middle or somewhere in chane. Named with One
combustion - disproportionation - free - radical substitution - pyrolysis
meso compound
chiral
ketone
35. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
anti conformation
stereoisomers
pyrolysis
36. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
hydroboration
electrophilic addition of X2
ethers
ketone
37. When bond angles deviate from ideal values
markovnikov's rule
weak bases
ring flip
angle strain
38. N - l - ml - ms
hybridization
quantum numbers
Combustion
electrophile
39. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
initiation propagation termination
lindlar's catalyst
Vinyl
40. O3
triple bond
nucleophile
ozonolysis
markovnikov's rule
41. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
alcohol
stereoisomers
chiral
polymerization
42. A molecule with an internal plane of symmetry
carboxylic acid
electrophilic addition of X2
meso compound
initiation propagation termination
43. Di - tri - t - sec - n -
Ignored
chiral center
catalytic hydrogenation
Alkane
44. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
Alkane
peroxycarboxylic acid
ring flip
oxidizing
45. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
peroxycarboxylic acid
y- root - en -x-yne
sp3
Vinyl
46. What is produced when o3 with lialh4 or nabh4
relative configuration
alcohol
hybridization
C3H8 + 5O2 = 3CO2 + 4H2O + heat
47. Rotations cancel each other out therefore no optical activity
Acetylene
isomer
hybridization
racemic mixture
48. Lowest priority group projects into the page
fischer projection
peroxycarboxylic acid
alkyne
ring strain
49. When boat flips
reducing
molecular orbital
ring flip
catalytic hydrogenation
50. Steps of free radical substitution
Alkene
initiation propagation termination
nucleophile
sp