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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. Common name for ethyne
ionic bond
Acetylene
sigma bond
achiral
2. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
propionaldehyde
electrophilic addition
ethers
3. Charged - need electrons
electrophile
electrophilic addition of HX
absolute configuration
lindlar's catalyst
4. What is produced when o3 with lialh4 or nabh4
alcohol
relative configuration
eclipsed conformation
quantum numbers
5. Monosubstituted ethylene
basicity
fischer projection
Haloalkane
Vinyl
6. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
isomer
2^n
carboxylic acid
disproportionation
7. What are the best leaving groups?
weak bases
electrophilic addition of X2
basicity
covalent bond
8. Two hydroxyl groups
alcohol
alkyne
combustion - disproportionation - free - radical substitution - pyrolysis
diol
9. Lowest priority group projects into the page
fischer projection
nonbonded strain
configuration
Alkyne
10. Chain of carbons connected by single bonds with hydrogen atoms attached.
protic solvent
achiral
Alkane nomenclature
Alkane
11. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
peroxycarboxylic acid
stereoisomers
diol
racemic mixture
12. Refers to the =CH2 group
specific rotation
methylene
peroxycarboxylic acid
weak bases
13. If a compound is able to rotate plane polarized light.
alkyne
basicity
optical activity
not ignored
14. Same molecular formula but different structure
isomer
pi bond
absolute configuration
meso compound
15. A molecule with an internal plane of symmetry
electrophilic addition of free radicals
meso compound
achiral
saturated hydrocarbon
16. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
potassium permanganate
hot - acidic potassium permanganate
pyrolysis
geometric isomers
17. Most similar. same molecule only at different points in their rotation. show them with newmans projections
hydroboration
ozonolysis
conformational isomer
Alkyne
18. Arise from angle strain - torsional strian and nonbonded strain
hot - acidic potassium permanganate
ring strain
acetaldehyde
enantiomer
19. Is bonded to only one other carbon atom
conformational isomer
chiral
alcohol
primary carbon
20. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
lindlar's catalyst
chiral center
structural isomers
oxidizing
21. When bond angles deviate from ideal values
alcohol
angle strain
isomer
ring strain
22. Functionality is specified by alkoxy- prefix. ROR
configuration
ethers
acetaldehyde
relative configuration
23. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
2^n
peroxycarboxylic acid
geminal
electrophilic addition of free radicals
24. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
nucleophile
disproportionation
reducing
Combustion
25. Transfer of electrions from one atome to another
Alkane
ionic bond
ethers
electrophile
26. Kmno4
potassium permanganate
ring strain
optical activity
electrophilic addition of X2
27. Steps of free radical substitution
polymerization
initiation propagation termination
sp3
aldehyde
28. Iso - neo - cyclo
anti conformation
gauche conformation
triple bond
not ignored
29. Zn/h or CH3/s with ozonolysis
ring flip
sp
relative configuration
reducing
30. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
vicinal
nonbonded strain
Vinyl
31. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
gauche conformation
cold potassium permanganate
ozonolysis
enantiomer
32. Carbonyl located in middle or somewhere in chane. Named with One
absolute configuration
meso compound
racemic mixture
ketone
33. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
halogenation
diastereomers
polymerization
methylene
34. Formed by mixing different types of orbitals
anti conformation
hybridization
enantiomer
Alkene
35. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
ethers
nucleophile
electrophilic addition of X2
36. Most favorable of staggared conformations
conformational isomer
formaldehyde
anti conformation
carboxylic acid
37. 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-
hydroboration
amines
sp
Alkyne
38. One s and two p 120 degree apart
eclipsed conformation
stereoisomers
sp2
sp3
39. 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
propionaldehyde
pyrolysis
diol
Alkyne
40. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
molecular orbital
methylene
hybridization
41. Name for ethanal
basicity
acetaldehyde
meso compound
halogen
42. Object that is not superimposable upon mirror image
chiral
torsional strain
configuration
specific rotation
43. M - chloroperoxybenzoic acid
relative configuration
mcpba
nonbonded strain
carboxylic acid
44. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
electrophile
absolute configuration
gauche conformation
45. Results when cyclic molecules must assume conformations that have eclipsed interactions
nonbonded strain
chiral
torsional strain
electrophile
46. A sigma bond and two pi bonds
reducing
triple bond
propionaldehyde
ionic bond
47. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
stereoisomers
hydroboration
mcpba
molecular orbital
48. Combustion reaction occurs through a radical process
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of X2
triple bond
amines
49. Goal is to produce most stable carbocation
50. One s and three p orbitals
halogenation
mcpba
racemic mixture
sp3