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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. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
gauche conformation
cold potassium permanganate
hot - acidic potassium permanganate
carbonyl
2. Not solvated
aprotic solvent
initiation propagation termination
acetaldehyde
Ignored
3. Is bonded to only one other carbon atom
primary carbon
ethers
Combustion
nucleophile
4. Goal is to produce most stable carbocation
5. Functionality is specified by alkoxy- prefix. ROR
enantiomer
ethers
enantiomer
Combustion
6. Monosubstituted ethylene
oxidizing
Vinyl
pyrolysis
basicity
7. Carbon carbon triple bonds. Suffix-yne.
ozonolysis
sigma bond
Alkyne
electrophilic addition of H2O
8. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
Combustion
aldehyde
Alkene
electrophilic addition of HX
9. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
markovnikov's rule
electrophilic addition of HX
ethers
carbonyl
10. M - chloroperoxybenzoic acid
ring flip
nonbonded strain
configuration
mcpba
11. Spatial arrangement of the atoms or groups of a sterioisomer
saturated hydrocarbon
polymerization
configuration
achiral
12. Di - tri - t - sec - n -
aldehyde
hot - acidic potassium permanganate
ring flip
Ignored
13. O3
Alkene
ozonolysis
amines
y- root - en -x-yne
14. If a compound is able to rotate plane polarized light.
acetaldehyde
optical activity
electrophilic addition of HX
aprotic solvent
15. 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.
relative configuration
geometric isomers
not ignored
molecular orbital
16. Rotations cancel each other out therefore no optical activity
alkyne
racemic mixture
halogenation
covalent bond
17. One s and three p orbitals
disproportionation
sp3
y- root - en -x-yne
carboxylic acid
18. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
hot - acidic potassium permanganate
oxidizing
aldehyde
nonbonded strain
19. Diols with hydroxyl group on adjacent carbon
vicinal
structural isomers
allyl
pyrolysis
20. Combustion reaction occurs through a radical process
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophile
saturated hydrocarbon
pyrolysis
21. 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
Combustion
formaldehyde
diastereomers
22. Carbonyl located in middle or somewhere in chane. Named with One
ketone
methylene
electrophilic addition of X2
lindlar's catalyst
23. Kmno4
potassium permanganate
ozonolysis
combustion - disproportionation - free - radical substitution - pyrolysis
racemic mixture
24. Carbon double bonded to an oxygen
carbonyl
pyrolysis
ketone
nonbonded strain
25. Lowest priority group projects into the page
sp3
structural isomers
fischer projection
propionaldehyde
26. 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.
structural isomers
angle strain
sp
diastereomers
27. What is produced when o3 with lialh4 or nabh4
gauche conformation
aldehyde
alcohol
sigma bond
28. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
diol
sigma bond
halogen
29. Diol with hydroxyl group on same carbon
ionic bond
geminal
Vinyl
not ignored
30. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
alkyne
y- root - en -x-yne
catalytic hydrogenation
hydroboration
31. Iso - neo - cyclo
not ignored
ionic bond
combustion - disproportionation - free - radical substitution - pyrolysis
angle strain
32. Results when cyclic molecules must assume conformations that have eclipsed interactions
hydroboration
amines
y- root - en -x-yne
torsional strain
33. If reagent has a bunch of oxygen
sigma bond
markovnikov's rule
lindlar's catalyst
oxidation
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
diastereomers
amines
catalytic hydrogenation
35. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
36. When bond angles deviate from ideal values
halogen
enantiomer
angle strain
geminal
37. Use the Greek root for the number of carbons followed by the ending - - ane
electrophilic addition of X2
stereoisomers
y- root - en -x-yne
Alkane nomenclature
38. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
sp3
2^n
sp2
pi bond
39. 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
electrophilic addition of free radicals
stereoisomers
ethers
40. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
sigma bond
formaldehyde
primary carbon
Alkene
41. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
racemic mixture
carboxylic acid
acetaldehyde
formaldehyde
42. One s and two p 120 degree apart
configuration
sp2
initiation propagation termination
acetaldehyde
43. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
isomer
halogenation
allyl
sp2
44. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
triple bond
ring strain
ketone
hot - acidic potassium permanganate
45. Highest energy no separation. or 120 separation.
ionic bond
Alkane nomenclature
eclipsed conformation
polymerization
46. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
electrophilic addition
geometric isomers
achiral
racemic mixture
47. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
disproportionation
ozonolysis
2^n
enantiomer
48. 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
y- root - en -x-yne
pyrolysis
achiral
acetaldehyde
49. A molecule with an internal plane of symmetry
ionic bond
ozonolysis
meso compound
sigma bond
50. Formed by mixing different types of orbitals
hybridization
eclipsed conformation
isomer
oxidizing