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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. 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
basicity
electrophilic addition of X2
eclipsed conformation
allyl
2. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
protic solvent
ozonolysis
ketone
racemic mixture
3. When bond angles deviate from ideal values
angle strain
structural isomers
sp3
electrophile
4. Combustion reaction occurs through a radical process
oxidizing
electrophilic addition of X2
C3H8 + 5O2 = 3CO2 + 4H2O + heat
disproportionation
5. One s and three p orbitals
disproportionation
carbonyl
basicity
sp3
6. Carbon double bonded to an oxygen
pyrolysis
methylene
carbonyl
absolute configuration
7. If a compound is able to rotate plane polarized light.
sigma bond
optical activity
relative configuration
Ignored
8. If reagent has a bunch of oxygen
oxidation
electrophilic addition of H2O
gauche conformation
acetaldehyde
9. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
enantiomer
potassium permanganate
geometric isomers
specific rotation
10. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
ozonolysis
basicity
Vinyl
covalent bond
11. Name for propanal
propionaldehyde
y- root - en -x-yne
aprotic solvent
nucleophile
12. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
2^n
polymerization
triple bond
not ignored
13. A = observed rotation / concentration * length
structural isomers
geometric isomers
alkyne
specific rotation
14. Object that is not superimposable upon mirror image
chiral
electrophilic addition of X2
pi bond
Ignored
15. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
stereoisomers
carboxylic acid
covalent bond
isomer
16. Share molecular formula but have different chemical and physical properties
structural isomers
Acetylene
potassium permanganate
reducing
17. Transfer of electrions from one atome to another
weak bases
covalent bond
ionic bond
fischer projection
18. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
electrophilic addition of H2O
electrophilic addition of X2
Vinyl
achiral
19. No double bonds. it has the maximum number of hydrogens.
acetaldehyde
catalytic hydrogenation
electrophilic addition of X2
saturated hydrocarbon
20. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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21. Lowest priority group projects into the page
angle strain
carboxylic acid
fischer projection
Alkane nomenclature
22. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
isomer
Alkene
meso compound
acetaldehyde
23. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sp
molecular orbital
not ignored
sigma bond
24. Is bonded to only one other carbon atom
meso compound
primary carbon
fischer projection
reducing
25. Formed by mixing different types of orbitals
diastereomers
hybridization
ionic bond
optical activity
26. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
hot - acidic potassium permanganate
chiral center
conformational isomer
27. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
primary carbon
quantum numbers
alkyne
28. 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.
acetaldehyde
molecular orbital
markovnikov's rule
geometric isomers
29. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
pyrolysis
weak bases
methylene
disproportionation
30. Hydrocarbon with one or more carbon carbon triple bond
alkyne
electrophilic addition
primary carbon
amines
31. One s and two p 120 degree apart
meso compound
gauche conformation
sp2
enantiomer
32. Name for ethanal
meso compound
pyrolysis
saturated hydrocarbon
acetaldehyde
33. F - CL - Br - I
halogen
ozonolysis
vicinal
eclipsed conformation
34. Common name for ethyne
Alkyne
Haloalkane
angle strain
Acetylene
35. Chain of carbons connected by single bonds with hydrogen atoms attached.
anti conformation
electrophilic addition of X2
Alkane
ketone
36. When boat flips
sigma bond
hot - acidic potassium permanganate
ring flip
electrophilic addition of H2O
37. Same molecular formula but different structure
Haloalkane
geometric isomers
vicinal
isomer
38. Compounds with halogen
Haloalkane
eclipsed conformation
2^n
chiral
39. Not solvated
lindlar's catalyst
aprotic solvent
optical activity
chiral center
40. Highest energy no separation. or 120 separation.
eclipsed conformation
nonbonded strain
electrophile
diastereomers
41. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
Ignored
carbonyl
stereoisomers
hot - acidic potassium permanganate
42. Arise from angle strain - torsional strian and nonbonded strain
alcohol
ring strain
electrophile
allyl
43. 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
primary carbon
amines
formaldehyde
catalytic hydrogenation
44. Iso - neo - cyclo
oxidation
configuration
not ignored
saturated hydrocarbon
45. Carbonyl located in middle or somewhere in chane. Named with One
allyl
geometric isomers
ketone
diastereomers
46. What is produced when o3 with lialh4 or nabh4
formaldehyde
alcohol
allyl
halogen
47. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
reducing
protic solvent
electrophilic addition of X2
electrophilic addition of H2O
48. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Combustion
cold potassium permanganate
relative configuration
Ignored
49. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
cold potassium permanganate
ring flip
Combustion
aldehyde
50. 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-
saturated hydrocarbon
covalent bond
alkyne
amines