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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. M - chloroperoxybenzoic acid
cold potassium permanganate
eclipsed conformation
catalytic hydrogenation
mcpba
2. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
structural isomers
catalytic hydrogenation
Vinyl
enantiomer
3. Name for mathanal
polymerization
achiral
racemic mixture
formaldehyde
4. Carbon carbon triple bonds. Suffix-yne.
lindlar's catalyst
initiation propagation termination
basicity
Alkyne
5. 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
catalytic hydrogenation
triple bond
achiral
oxidizing
6. 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
2^n
sp2
combustion - disproportionation - free - radical substitution - pyrolysis
allyl
7. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
sp3
Ignored
Vinyl
achiral
8. Same molecular formula but different structure
racemic mixture
chiral
isomer
sp
9. Methyl are 60 degrees apart. kinda stable
sp
ring strain
gauche conformation
cold potassium permanganate
10. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
pyrolysis
propionaldehyde
polymerization
acetaldehyde
11. 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
Acetylene
protic solvent
basicity
2^n
12. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
chiral center
halogenation
meso compound
basicity
13. Common name for ethyne
vicinal
ozonolysis
Acetylene
electrophilic addition of free radicals
14. 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
cold potassium permanganate
polymerization
ozonolysis
enantiomer
15. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
chiral
meso compound
hot - acidic potassium permanganate
initiation propagation termination
16. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
disproportionation
halogenation
molecular orbital
geminal
17. Charged - need electrons
weak bases
electrophile
aprotic solvent
achiral
18. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
ring flip
y- root - en -x-yne
specific rotation
19. When boat flips
potassium permanganate
amines
ring flip
primary carbon
20. Two hydroxyl groups
ozonolysis
hybridization
diol
vicinal
21. 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.
structural isomers
protic solvent
molecular orbital
Combustion
22. Steps of free radical substitution
peroxycarboxylic acid
methylene
initiation propagation termination
oxidation
23. If reagent has a bunch of oxygen
oxidation
Alkyne
geometric isomers
saturated hydrocarbon
24. One s and two p 120 degree apart
reducing
sp2
enantiomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
25. If a compound is able to rotate plane polarized light.
quantum numbers
alcohol
optical activity
ring flip
26. Not solvated
sigma bond
catalytic hydrogenation
aprotic solvent
sp3
27. Use the Greek root for the number of carbons followed by the ending - - ane
Haloalkane
Alkane nomenclature
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of HX
28. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
mcpba
disproportionation
pi bond
cold potassium permanganate
29. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition
electrophilic addition of H2O
enantiomer
electrophile
30. Name for propanal
Alkyne
propionaldehyde
specific rotation
Haloalkane
31. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
not ignored
formaldehyde
halogen
32. Is bonded to only one other carbon atom
potassium permanganate
pi bond
primary carbon
isomer
33. Object that is not superimposable upon mirror image
electrophilic addition
hybridization
chiral
electrophile
34. O3
2^n
chiral center
sp2
ozonolysis
35. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
geometric isomers
amines
aldehyde
Vinyl
36. Most similar. same molecule only at different points in their rotation. show them with newmans projections
conformational isomer
geometric isomers
Alkane
cold potassium permanganate
37. Rotations cancel each other out therefore no optical activity
combustion - disproportionation - free - radical substitution - pyrolysis
alcohol
racemic mixture
saturated hydrocarbon
38. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
initiation propagation termination
ozonolysis
specific rotation
potassium permanganate
39. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
amines
torsional strain
electrophilic addition
conformational isomer
40. Kmno4
potassium permanganate
polymerization
specific rotation
geometric isomers
41. A molecule with an internal plane of symmetry
meso compound
nonbonded strain
sigma bond
potassium permanganate
42. Goal is to produce most stable carbocation
43. Transfer of electrions from one atome to another
propionaldehyde
polymerization
ionic bond
reducing
44. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
hybridization
cold potassium permanganate
Alkane
quantum numbers
45. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.
nonbonded strain
hot - acidic potassium permanganate
molecular orbital
markovnikov's rule
46. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
Ignored
ozonolysis
specific rotation
sp
47. Diol with hydroxyl group on same carbon
chiral
geminal
quantum numbers
basicity
48. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
ring strain
electrophilic addition of H2O
sp
49. 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
initiation propagation termination
alkyne
Alkene
50. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
aldehyde
Combustion
weak bases
not ignored