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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. Compounds with halogen
Alkyne
meso compound
protic solvent
Haloalkane
2. Carbon double bonded to an oxygen
absolute configuration
enantiomer
hydroboration
carbonyl
3. Kmno4
enantiomer
eclipsed conformation
potassium permanganate
electrophilic addition of HX
4. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
ionic bond
mcpba
meso compound
y- root - en -x-yne
5. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
carboxylic acid
Haloalkane
chiral
geometric isomers
6. Most favorable of staggared conformations
torsional strain
absolute configuration
anti conformation
electrophilic addition of free radicals
7. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
basicity
absolute configuration
diastereomers
isomer
8. No double bonds. it has the maximum number of hydrogens.
relative configuration
saturated hydrocarbon
covalent bond
electrophilic addition of X2
9. Combustion reaction occurs through a radical process
isomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
diastereomers
molecular orbital
10. Charged - need electrons
chiral center
enantiomer
electrophile
protic solvent
11. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
combustion - disproportionation - free - radical substitution - pyrolysis
Ignored
eclipsed conformation
12. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
conformational isomer
Vinyl
fischer projection
oxidizing
13. Lowest priority group projects into the page
eclipsed conformation
quantum numbers
fischer projection
hybridization
14. Carbonyl located in middle or somewhere in chane. Named with One
not ignored
ketone
Ignored
catalytic hydrogenation
15. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
y- root - en -x-yne
geminal
absolute configuration
stereoisomers
16. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
quantum numbers
electrophile
ozonolysis
halogenation
17. Di - tri - t - sec - n -
potassium permanganate
Ignored
reducing
Combustion
18. Spatial arrangement of the atoms or groups of a sterioisomer
achiral
torsional strain
oxidation
configuration
19. Iso - neo - cyclo
electrophilic addition of H2O
lindlar's catalyst
carboxylic acid
not ignored
20. 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
electrophilic addition of X2
molecular orbital
markovnikov's rule
pyrolysis
21. What is produced when o3 with lialh4 or nabh4
sp2
alcohol
alkyne
electrophilic addition of free radicals
22. Arise from angle strain - torsional strian and nonbonded strain
electrophilic addition of HX
formaldehyde
methylene
ring strain
23. What are the best leaving groups?
anti conformation
weak bases
formaldehyde
amines
24. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
initiation propagation termination
peroxycarboxylic acid
cold potassium permanganate
electrophilic addition of X2
25. When bond angles deviate from ideal values
angle strain
relative configuration
conformational isomer
electrophilic addition of X2
26. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
electrophilic addition of HX
cold potassium permanganate
hybridization
sp
27. Rotations cancel each other out therefore no optical activity
catalytic hydrogenation
markovnikov's rule
racemic mixture
covalent bond
28. Nucleus lover. electron rich species that are attracked to charged atoms
peroxycarboxylic acid
aldehyde
nucleophile
Haloalkane
29. Carbon carbon triple bonds. Suffix-yne.
sigma bond
Alkyne
chiral
catalytic hydrogenation
30. When boat flips
ring flip
diastereomers
alcohol
pi bond
31. 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
methylene
achiral
catalytic hydrogenation
anti conformation
32. Transfer of electrions from one atome to another
sp3
primary carbon
2^n
ionic bond
33. A = observed rotation / concentration * length
C3H8 + 5O2 = 3CO2 + 4H2O + heat
propionaldehyde
specific rotation
electrophilic addition of free radicals
34. Most similar. same molecule only at different points in their rotation. show them with newmans projections
acetaldehyde
carboxylic acid
conformational isomer
ring strain
35. 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
Alkyne
Alkane
reducing
enantiomer
36. Formed by mixing different types of orbitals
disproportionation
hybridization
Vinyl
chiral center
37. Methyl are 60 degrees apart. kinda stable
protic solvent
nucleophile
sp
gauche conformation
38. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
halogenation
allyl
primary carbon
cold potassium permanganate
39. 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.
chiral center
molecular orbital
polymerization
angle strain
40. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
electrophilic addition of X2
disproportionation
formaldehyde
sp3
41. 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-
ring strain
amines
hot - acidic potassium permanganate
Alkane
42. Name for mathanal
formaldehyde
primary carbon
molecular orbital
aldehyde
43. 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.
propionaldehyde
fischer projection
lindlar's catalyst
nonbonded strain
44. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
carboxylic acid
Alkene
Combustion
isomer
45. Carbon with four different substituents and lack a plane of symmetry
chiral center
Alkene
vicinal
optical activity
46. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
propionaldehyde
sp3
peroxycarboxylic acid
primary carbon
47. If a compound is able to rotate plane polarized light.
triple bond
halogenation
optical activity
relative configuration
48. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
ketone
alcohol
Alkyne
49. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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50. Zn/h or CH3/s with ozonolysis
ozonolysis
carboxylic acid
reducing
Alkane