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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. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
saturated hydrocarbon
geometric isomers
Combustion
cold potassium permanganate
2. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
optical activity
sigma bond
Haloalkane
peroxycarboxylic acid
3. 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-
amines
hydroboration
sp2
fischer projection
4. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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5. 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.
ring flip
nonbonded strain
molecular orbital
relative configuration
6. Carbon with four different substituents and lack a plane of symmetry
racemic mixture
oxidation
isomer
chiral center
7. Zn/h or CH3/s with ozonolysis
Acetylene
protic solvent
reducing
methylene
8. Not solvated
racemic mixture
y- root - en -x-yne
ring strain
aprotic solvent
9. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
vicinal
hybridization
formaldehyde
y- root - en -x-yne
10. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
relative configuration
stereoisomers
ionic bond
11. Rotations cancel each other out therefore no optical activity
not ignored
specific rotation
racemic mixture
halogenation
12. A molecule with an internal plane of symmetry
chiral center
meso compound
Haloalkane
electrophilic addition of free radicals
13. No double bonds. it has the maximum number of hydrogens.
saturated hydrocarbon
acetaldehyde
methylene
isomer
14. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
primary carbon
propionaldehyde
relative configuration
hot - acidic potassium permanganate
15. Carbon double bonded to an oxygen
peroxycarboxylic acid
carbonyl
sp3
Acetylene
16. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
geometric isomers
electrophilic addition of free radicals
alkyne
17. Share molecular formula but have different chemical and physical properties
structural isomers
aldehyde
mcpba
saturated hydrocarbon
18. Carbonyl located in middle or somewhere in chane. Named with One
Alkene
methylene
ketone
fischer projection
19. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
not ignored
electrophile
racemic mixture
enantiomer
20. Charged - need electrons
chiral
ketone
ring strain
electrophile
21. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
not ignored
potassium permanganate
ozonolysis
absolute configuration
22. Lowest priority group projects into the page
protic solvent
geminal
fischer projection
electrophilic addition of H2O
23. 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.
oxidation
Combustion
Vinyl
diastereomers
24. Goal is to produce most stable carbocation
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25. Highest energy no separation. or 120 separation.
y- root - en -x-yne
eclipsed conformation
diol
geminal
26. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
anti conformation
diastereomers
polymerization
electrophilic addition of free radicals
27. 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
C3H8 + 5O2 = 3CO2 + 4H2O + heat
catalytic hydrogenation
eclipsed conformation
disproportionation
28. Refers to the =CH2 group
markovnikov's rule
acetaldehyde
methylene
nonbonded strain
29. 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
geometric isomers
ring strain
amines
pyrolysis
30. Compounds with halogen
sp2
Haloalkane
alkyne
triple bond
31. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
optical activity
conformational isomer
electrophilic addition of free radicals
carboxylic acid
32. 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
allyl
eclipsed conformation
quantum numbers
sp
33. F - CL - Br - I
vicinal
y- root - en -x-yne
specific rotation
halogen
34. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
hot - acidic potassium permanganate
aprotic solvent
configuration
hydroboration
35. Steps of free radical substitution
initiation propagation termination
quantum numbers
electrophilic addition of free radicals
ring flip
36. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
Ignored
combustion - disproportionation - free - radical substitution - pyrolysis
electrophilic addition of H2O
electrophilic addition
37. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
torsional strain
oxidizing
carbonyl
y- root - en -x-yne
38. Arise from angle strain - torsional strian and nonbonded strain
enantiomer
aldehyde
sp3
ring strain
39. If a compound is able to rotate plane polarized light.
alkyne
optical activity
basicity
aprotic solvent
40. Most favorable of staggared conformations
formaldehyde
electrophilic addition of free radicals
electrophilic addition of H2O
anti conformation
41. N - l - ml - ms
quantum numbers
racemic mixture
electrophilic addition
absolute configuration
42. What is produced when o3 with lialh4 or nabh4
anti conformation
alcohol
electrophilic addition of H2O
polymerization
43. Spatial arrangement of the atoms or groups of a sterioisomer
aldehyde
configuration
y- root - en -x-yne
ionic bond
44. Diol with hydroxyl group on same carbon
geminal
enantiomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
carboxylic acid
45. Formed by mixing different types of orbitals
hybridization
anti conformation
amines
combustion - disproportionation - free - radical substitution - pyrolysis
46. A = observed rotation / concentration * length
conformational isomer
specific rotation
disproportionation
Combustion
47. Is bonded to only one other carbon atom
fischer projection
primary carbon
potassium permanganate
vicinal
48. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
geminal
amines
electrophilic addition of X2
49. When boat flips
anti conformation
ring strain
ring flip
electrophilic addition of H2O
50. M - chloroperoxybenzoic acid
gauche conformation
electrophilic addition
diastereomers
mcpba