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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
cold potassium permanganate
C3H8 + 5O2 = 3CO2 + 4H2O + heat
nonbonded strain
propionaldehyde
2. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
molecular orbital
electrophilic addition of free radicals
electrophilic addition of H2O
sp2
3. Charged - need electrons
allyl
electrophile
combustion - disproportionation - free - radical substitution - pyrolysis
enantiomer
4. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
polymerization
electrophilic addition of X2
not ignored
5. Share molecular formula but have different chemical and physical properties
optical activity
structural isomers
geometric isomers
eclipsed conformation
6. 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.
electrophilic addition of X2
molecular orbital
covalent bond
combustion - disproportionation - free - radical substitution - pyrolysis
7. 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
stereoisomers
pyrolysis
alkyne
oxidation
8. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
diastereomers
vicinal
relative configuration
enantiomer
9. Hydrocarbon with one or more carbon carbon triple bond
diol
basicity
ring flip
alkyne
10. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
electrophilic addition of X2
ring strain
geminal
11. Refers to the =CH2 group
electrophilic addition of HX
electrophilic addition
mcpba
methylene
12. What is produced when o3 with lialh4 or nabh4
Alkyne
alcohol
peroxycarboxylic acid
potassium permanganate
13. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
acetaldehyde
oxidizing
carboxylic acid
potassium permanganate
14. No double bonds. it has the maximum number of hydrogens.
nonbonded strain
ozonolysis
saturated hydrocarbon
geminal
15. Methyl are 60 degrees apart. kinda stable
oxidation
y- root - en -x-yne
gauche conformation
Ignored
16. Diols with hydroxyl group on adjacent carbon
vicinal
eclipsed conformation
halogenation
hybridization
17. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
saturated hydrocarbon
geminal
cold potassium permanganate
electrophilic addition of HX
18. If a compound is able to rotate plane polarized light.
peroxycarboxylic acid
optical activity
carbonyl
Alkane
19. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
hydroboration
fischer projection
markovnikov's rule
20. Object that is not superimposable upon mirror image
chiral
ring flip
Alkane nomenclature
triple bond
21. Lowest priority group projects into the page
methylene
Acetylene
fischer projection
aldehyde
22. How many stereoisomers can a molecule have with n chiral centers
electrophile
Acetylene
2^n
ionic bond
23. Transfer of electrions from one atome to another
ionic bond
methylene
racemic mixture
Combustion
24. Is bonded to only one other carbon atom
primary carbon
2^n
electrophilic addition of free radicals
Acetylene
25. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
achiral
sp
y- root - en -x-yne
electrophile
26. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
acetaldehyde
geometric isomers
sigma bond
potassium permanganate
27. 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
polymerization
ethers
allyl
relative configuration
28. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
methylene
saturated hydrocarbon
ketone
electrophilic addition
29. Zn/h or CH3/s with ozonolysis
ozonolysis
reducing
achiral
enantiomer
30. Carbon with four different substituents and lack a plane of symmetry
basicity
ozonolysis
hydroboration
chiral center
31. Common name for ethyne
quantum numbers
weak bases
Acetylene
halogenation
32. 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-
triple bond
absolute configuration
amines
2^n
33. Sharing of electron between atoms
lindlar's catalyst
achiral
halogenation
covalent bond
34. Compounds with halogen
Haloalkane
configuration
not ignored
acetaldehyde
35. Nucleus lover. electron rich species that are attracked to charged atoms
pyrolysis
molecular orbital
nucleophile
torsional strain
36. Results when cyclic molecules must assume conformations that have eclipsed interactions
peroxycarboxylic acid
torsional strain
ozonolysis
diol
37. Functionality is specified by alkoxy- prefix. ROR
diastereomers
ozonolysis
ethers
meso compound
38. Two hydroxyl groups
basicity
diol
oxidation
Combustion
39. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
not ignored
chiral
electrophilic addition of X2
specific rotation
40. Same molecular formula but different structure
pi bond
ring flip
isomer
saturated hydrocarbon
41. Rotations cancel each other out therefore no optical activity
racemic mixture
acetaldehyde
reducing
diastereomers
42. 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
basicity
enantiomer
structural isomers
anti conformation
43. M - chloroperoxybenzoic acid
nucleophile
combustion - disproportionation - free - radical substitution - pyrolysis
mcpba
formaldehyde
44. Iso - neo - cyclo
sp3
alcohol
angle strain
not ignored
45. Di - tri - t - sec - n -
Ignored
eclipsed conformation
halogenation
electrophilic addition of HX
46. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
achiral
Alkyne
not ignored
47. Carbon double bonded to an oxygen
carbonyl
oxidizing
eclipsed conformation
ring flip
48. A sigma bond and two pi bonds
mcpba
stereoisomers
isomer
triple bond
49. One s and two p 120 degree apart
sp2
enantiomer
polymerization
propionaldehyde
50. Carbonyl located in middle or somewhere in chane. Named with One
enantiomer
cold potassium permanganate
Combustion
ketone