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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. Name for propanal
nonbonded strain
electrophilic addition of H2O
propionaldehyde
fischer projection
2. Kmno4
conformational isomer
triple bond
electrophilic addition of free radicals
potassium permanganate
3. Lowest priority group projects into the page
not ignored
triple bond
fischer projection
ketone
4. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable
protic solvent
covalent bond
ring flip
C3H8 + 5O2 = 3CO2 + 4H2O + heat
5. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
halogenation
pi bond
peroxycarboxylic acid
Alkyne
6. Most similar. same molecule only at different points in their rotation. show them with newmans projections
hybridization
achiral
conformational isomer
racemic mixture
7. Carbon carbon triple bonds. Suffix-yne.
propionaldehyde
anti conformation
Alkyne
gauche conformation
8. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
amines
cold potassium permanganate
racemic mixture
protic solvent
9. O3
electrophilic addition of H2O
ozonolysis
triple bond
halogenation
10. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
2^n
catalytic hydrogenation
amines
11. Name for ethanal
quantum numbers
Ignored
acetaldehyde
propionaldehyde
12. Steps of free radical substitution
electrophile
initiation propagation termination
halogenation
pyrolysis
13. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
conformational isomer
gauche conformation
nucleophile
14. Carbon with four different substituents and lack a plane of symmetry
chiral center
molecular orbital
electrophilic addition
alkyne
15. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
acetaldehyde
electrophilic addition of HX
2^n
hydroboration
16. 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-
chiral center
Combustion
conformational isomer
amines
17. Refers to the =CH2 group
methylene
ring flip
chiral
aprotic solvent
18. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
electrophile
geometric isomers
carbonyl
enantiomer
19. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
geometric isomers
racemic mixture
hydroboration
allyl
20. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
hybridization
ozonolysis
amines
21. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
Alkane
electrophilic addition of HX
electrophilic addition of free radicals
protic solvent
22. Compounds with halogen
racemic mixture
halogen
angle strain
Haloalkane
23. Highest energy no separation. or 120 separation.
ring flip
2^n
aldehyde
eclipsed conformation
24. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
absolute configuration
molecular orbital
lindlar's catalyst
Combustion
25. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
alkyne
electrophilic addition of X2
Alkene
26. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
disproportionation
2^n
polymerization
ketone
27. Diol with hydroxyl group on same carbon
electrophilic addition of free radicals
hot - acidic potassium permanganate
geminal
Acetylene
28. Hydrocarbon with one or more carbon carbon triple bond
protic solvent
ethers
ionic bond
alkyne
29. Same molecular formula but different structure
Vinyl
sp
racemic mixture
isomer
30. If reagent has a bunch of oxygen
meso compound
methylene
hybridization
oxidation
31. One s and two p 120 degree apart
halogenation
optical activity
relative configuration
sp2
32. Transfer of electrions from one atome to another
ionic bond
saturated hydrocarbon
alcohol
quantum numbers
33. Functionality is specified by alkoxy- prefix. ROR
structural isomers
carboxylic acid
hydroboration
ethers
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
enantiomer
Combustion
racemic mixture
protic solvent
35. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
hot - acidic potassium permanganate
diol
oxidizing
alcohol
36. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
geometric isomers
diastereomers
electrophilic addition of X2
alkyne
37. M - chloroperoxybenzoic acid
molecular orbital
halogen
mcpba
geometric isomers
38. Non mirror image of configurational isomers. cis and trans alkenes are them. possible when a molecule has two or more stereogenic centers that differ at some but not alll of the centers. they require multiple chiral centers.
diastereomers
potassium permanganate
not ignored
molecular orbital
39. How many stereoisomers can a molecule have with n chiral centers
Acetylene
triple bond
2^n
protic solvent
40. N - l - ml - ms
propionaldehyde
oxidation
quantum numbers
ozonolysis
41. Two hydroxyl groups
diol
gauche conformation
pi bond
Vinyl
42. 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
optical activity
catalytic hydrogenation
molecular orbital
propionaldehyde
43. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
allyl
electrophilic addition of X2
potassium permanganate
carboxylic acid
44. Formed by mixing different types of orbitals
hybridization
ozonolysis
quantum numbers
enantiomer
45. Use the Greek root for the number of carbons followed by the ending - - ane
ozonolysis
meso compound
enantiomer
Alkane nomenclature
46. When boat flips
halogen
ring flip
enantiomer
angle strain
47. A = observed rotation / concentration * length
amines
initiation propagation termination
combustion - disproportionation - free - radical substitution - pyrolysis
specific rotation
48. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
hot - acidic potassium permanganate
hydroboration
structural isomers
anti conformation
49. Methyl are 60 degrees apart. kinda stable
chiral center
cold potassium permanganate
acetaldehyde
gauche conformation
50. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
sp3
y- root - en -x-yne
alkyne
peroxycarboxylic acid