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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. Hydrocarbon with one or more carbon carbon triple bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
alkyne
quantum numbers
Alkene
2. Di - tri - t - sec - n -
covalent bond
amines
hot - acidic potassium permanganate
Ignored
3. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
electrophilic addition of free radicals
Alkane nomenclature
nonbonded strain
4. Transfer of electrions from one atome to another
sp3
ionic bond
configuration
angle strain
5. One s and three p orbitals
geometric isomers
combustion - disproportionation - free - radical substitution - pyrolysis
sp3
Combustion
6. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
formaldehyde
diastereomers
peroxycarboxylic acid
hot - acidic potassium permanganate
7. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
geometric isomers
stereoisomers
eclipsed conformation
sigma bond
8. 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
Alkyne
formaldehyde
configuration
pyrolysis
9. 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
aprotic solvent
catalytic hydrogenation
disproportionation
carbonyl
10. Same molecular formula but different structure
potassium permanganate
meso compound
diol
isomer
11. Charged - need electrons
acetaldehyde
oxidizing
electrophile
structural isomers
12. Most favorable of staggared conformations
anti conformation
relative configuration
electrophilic addition of X2
sigma bond
13. What is produced when o3 with lialh4 or nabh4
optical activity
alcohol
anti conformation
chiral
14. 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-
anti conformation
sp3
amines
triple bond
15. One s and two p 120 degree apart
relative configuration
electrophilic addition of X2
enantiomer
sp2
16. When bond angles deviate from ideal values
angle strain
sigma bond
reducing
catalytic hydrogenation
17. Alphabetical order of alkane rxn
initiation propagation termination
combustion - disproportionation - free - radical substitution - pyrolysis
chiral center
saturated hydrocarbon
18. Not solvated
aprotic solvent
torsional strain
achiral
racemic mixture
19. Monosubstituted ethylene
electrophilic addition of H2O
conformational isomer
Vinyl
basicity
20. When boat flips
molecular orbital
Alkene
combustion - disproportionation - free - radical substitution - pyrolysis
ring flip
21. 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
Haloalkane
allyl
combustion - disproportionation - free - radical substitution - pyrolysis
not ignored
22. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
alkyne
Alkene
ozonolysis
optical activity
23. Highest energy no separation. or 120 separation.
basicity
ionic bond
eclipsed conformation
Ignored
24. A molecule with an internal plane of symmetry
meso compound
acetaldehyde
Alkane nomenclature
basicity
25. Chain of carbons connected by single bonds with hydrogen atoms attached.
electrophilic addition of X2
oxidation
ozonolysis
Alkane
26. A = observed rotation / concentration * length
Alkene
absolute configuration
specific rotation
carboxylic acid
27. Carbonyl located in middle or somewhere in chane. Named with One
Acetylene
ketone
markovnikov's rule
ring flip
28. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
angle strain
allyl
quantum numbers
disproportionation
29. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
Haloalkane
electrophilic addition of X2
isomer
fischer projection
30. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
peroxycarboxylic acid
amines
eclipsed conformation
31. No double bonds. it has the maximum number of hydrogens.
lindlar's catalyst
ozonolysis
saturated hydrocarbon
optical activity
32. Name for ethanal
Alkene
disproportionation
electrophilic addition of H2O
acetaldehyde
33. Compounds with halogen
alkyne
quantum numbers
Haloalkane
Ignored
34. 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
electrophilic addition of H2O
enantiomer
Vinyl
markovnikov's rule
35. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
catalytic hydrogenation
Alkyne
achiral
relative configuration
36. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
pyrolysis
oxidizing
halogen
polymerization
37. Diol with hydroxyl group on same carbon
geminal
propionaldehyde
lindlar's catalyst
diastereomers
38. Steps of free radical substitution
weak bases
saturated hydrocarbon
formaldehyde
initiation propagation termination
39. Most similar. same molecule only at different points in their rotation. show them with newmans projections
conformational isomer
ring strain
reducing
halogenation
40. Object that is not superimposable upon mirror image
acetaldehyde
chiral
Alkane nomenclature
racemic mixture
41. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
alcohol
Haloalkane
y- root - en -x-yne
Ignored
42. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
Haloalkane
absolute configuration
sigma bond
achiral
43. Kmno4
hydroboration
potassium permanganate
geometric isomers
halogen
44. Two hydroxyl groups
hot - acidic potassium permanganate
racemic mixture
diol
relative configuration
45. Name for propanal
propionaldehyde
gauche conformation
angle strain
y- root - en -x-yne
46. If reagent has a bunch of oxygen
diastereomers
oxidation
configuration
carbonyl
47. Refers to the =CH2 group
fischer projection
methylene
mcpba
ionic bond
48. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
stereoisomers
halogen
diol
relative configuration
49. F - CL - Br - I
halogen
Acetylene
Haloalkane
basicity
50. Combustion reaction occurs through a radical process
basicity
sp3
specific rotation
C3H8 + 5O2 = 3CO2 + 4H2O + heat