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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. Sharing of electron between atoms
angle strain
absolute configuration
formaldehyde
covalent bond
2. F - CL - Br - I
oxidation
alkyne
halogen
covalent bond
3. N - l - ml - ms
Vinyl
alkyne
lindlar's catalyst
quantum numbers
4. Zn/h or CH3/s with ozonolysis
electrophilic addition of HX
reducing
structural isomers
chiral
5. Results when cyclic molecules must assume conformations that have eclipsed interactions
Alkane
torsional strain
gauche conformation
potassium permanganate
6. Carbon double bonded to an oxygen
hydroboration
covalent bond
carbonyl
lindlar's catalyst
7. A sigma bond and two pi bonds
Vinyl
protic solvent
acetaldehyde
triple bond
8. Common name for ethyne
specific rotation
electrophilic addition
Acetylene
Alkyne
9. If a compound is able to rotate plane polarized light.
ketone
propionaldehyde
optical activity
enantiomer
10. Steps of free radical substitution
molecular orbital
weak bases
initiation propagation termination
ionic bond
11. 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.
oxidation
conformational isomer
sp2
molecular orbital
12. O3
polymerization
Alkyne
conformational isomer
ozonolysis
13. Iso - neo - cyclo
not ignored
molecular orbital
halogenation
carboxylic acid
14. Object that is not superimposable upon mirror image
covalent bond
basicity
chiral
alcohol
15. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
formaldehyde
disproportionation
covalent bond
hot - acidic potassium permanganate
16. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
angle strain
electrophilic addition of free radicals
combustion - disproportionation - free - radical substitution - pyrolysis
17. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
sp
alkyne
hot - acidic potassium permanganate
pi bond
18. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
cold potassium permanganate
geminal
ring strain
absolute configuration
19. 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
geminal
enantiomer
2^n
20. A molecule with an internal plane of symmetry
meso compound
chiral center
lindlar's catalyst
initiation propagation termination
21. Is bonded to only one other carbon atom
eclipsed conformation
Vinyl
primary carbon
Combustion
22. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
enantiomer
cold potassium permanganate
stereoisomers
electrophilic addition of H2O
23. Diol with hydroxyl group on same carbon
geminal
not ignored
triple bond
electrophile
24. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
y- root - en -x-yne
ketone
anti conformation
halogenation
25. Methyl are 60 degrees apart. kinda stable
torsional strain
gauche conformation
disproportionation
halogenation
26. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
initiation propagation termination
ring strain
ring flip
electrophilic addition of H2O
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
basicity
allyl
Alkane nomenclature
electrophilic addition of H2O
28. Name for mathanal
ring flip
Alkene
weak bases
formaldehyde
29. Two hydroxyl groups
enantiomer
enantiomer
Alkane nomenclature
diol
30. Kmno4
mcpba
ozonolysis
potassium permanganate
Alkene
31. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
pi bond
electrophilic addition of H2O
sp3
carboxylic acid
32. Nucleus lover. electron rich species that are attracked to charged atoms
sp3
nucleophile
propionaldehyde
molecular orbital
33. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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34. 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-
halogen
primary carbon
ring flip
amines
35. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
electrophilic addition of free radicals
configuration
oxidizing
geometric isomers
36. Spatial arrangement of the atoms or groups of a sterioisomer
ozonolysis
relative configuration
lindlar's catalyst
configuration
37. Carbonyl located in middle or somewhere in chane. Named with One
eclipsed conformation
ketone
weak bases
carbonyl
38. Compounds with halogen
Haloalkane
electrophilic addition of HX
Alkyne
relative configuration
39. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
hydroboration
enantiomer
primary carbon
C3H8 + 5O2 = 3CO2 + 4H2O + heat
40. What is produced when o3 with lialh4 or nabh4
sigma bond
polymerization
sp2
alcohol
41. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
enantiomer
mcpba
quantum numbers
42. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
catalytic hydrogenation
hydroboration
Ignored
Alkene
43. Transfer of electrions from one atome to another
ionic bond
not ignored
structural isomers
covalent bond
44. No double bonds. it has the maximum number of hydrogens.
stereoisomers
saturated hydrocarbon
basicity
geminal
45. One s and two p 120 degree apart
Alkane nomenclature
sp2
covalent bond
pyrolysis
46. Di - tri - t - sec - n -
C3H8 + 5O2 = 3CO2 + 4H2O + heat
amines
carboxylic acid
Ignored
47. Same molecular formula but different structure
chiral center
Combustion
combustion - disproportionation - free - radical substitution - pyrolysis
isomer
48. Goal is to produce most stable carbocation
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49. A = observed rotation / concentration * length
Combustion
pi bond
specific rotation
not ignored
50. Most favorable of staggared conformations
Vinyl
formaldehyde
diol
anti conformation