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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. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
stereoisomers
pyrolysis
pi bond
oxidizing
2. 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
angle strain
hot - acidic potassium permanganate
enantiomer
Alkane nomenclature
3. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
propionaldehyde
halogen
ring strain
4. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
halogen
chiral
sigma bond
5. Lowest priority group projects into the page
fischer projection
Combustion
ketone
ozonolysis
6. Arise from angle strain - torsional strian and nonbonded strain
ring strain
amines
electrophilic addition of free radicals
weak bases
7. Refers to the =CH2 group
sp2
hot - acidic potassium permanganate
methylene
electrophilic addition of HX
8. Diols with hydroxyl group on adjacent carbon
vicinal
halogen
lindlar's catalyst
molecular orbital
9. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
torsional strain
electrophilic addition of H2O
saturated hydrocarbon
initiation propagation termination
10. Monosubstituted ethylene
conformational isomer
2^n
Vinyl
peroxycarboxylic acid
11. Compounds with halogen
Haloalkane
enantiomer
lindlar's catalyst
potassium permanganate
12. F - CL - Br - I
halogen
hot - acidic potassium permanganate
basicity
sp2
13. Name for mathanal
formaldehyde
combustion - disproportionation - free - radical substitution - pyrolysis
electrophilic addition of HX
ring flip
14. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
isomer
vicinal
pyrolysis
15. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
16. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
electrophilic addition of HX
meso compound
peroxycarboxylic acid
sigma bond
17. Name for propanal
propionaldehyde
eclipsed conformation
Alkane
enantiomer
18. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
pyrolysis
basicity
Alkene
y- root - en -x-yne
19. Di - tri - t - sec - n -
configuration
catalytic hydrogenation
structural isomers
Ignored
20. M - chloroperoxybenzoic acid
potassium permanganate
carboxylic acid
mcpba
primary carbon
21. Carbonyl located in middle or somewhere in chane. Named with One
Combustion
ketone
mcpba
nucleophile
22. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
ozonolysis
potassium permanganate
alkyne
23. 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
catalytic hydrogenation
sp
protic solvent
lindlar's catalyst
24. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
potassium permanganate
electrophilic addition of X2
Combustion
hot - acidic potassium permanganate
25. Sharing of electron between atoms
meso compound
formaldehyde
covalent bond
eclipsed conformation
26. Charged - need electrons
eclipsed conformation
covalent bond
electrophile
Alkyne
27. Steps of free radical substitution
sp2
chiral
conformational isomer
initiation propagation termination
28. 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.
markovnikov's rule
molecular orbital
oxidizing
angle strain
29. Two hydroxyl groups
diol
achiral
not ignored
electrophilic addition of free radicals
30. Most favorable of staggared conformations
diol
anti conformation
Alkane
Acetylene
31. 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
specific rotation
carboxylic acid
Alkane
32. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
allyl
potassium permanganate
alkyne
cold potassium permanganate
33. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
Acetylene
ozonolysis
Alkane
chiral center
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-
chiral center
ethers
amines
protic solvent
35. Carbon carbon triple bonds. Suffix-yne.
racemic mixture
markovnikov's rule
electrophilic addition of H2O
Alkyne
36. Transfer of electrions from one atome to another
carboxylic acid
ionic bond
oxidizing
oxidation
37. Alphabetical order of alkane rxn
anti conformation
ozonolysis
pyrolysis
combustion - disproportionation - free - radical substitution - pyrolysis
38. 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
Vinyl
optical activity
alkyne
pyrolysis
39. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
halogenation
specific rotation
ozonolysis
ring strain
40. Common name for ethyne
Acetylene
basicity
not ignored
propionaldehyde
41. Use the Greek root for the number of carbons followed by the ending - - ane
enantiomer
2^n
Alkane nomenclature
electrophilic addition of free radicals
42. N - l - ml - ms
sp
Alkane
Haloalkane
quantum numbers
43. When boat flips
allyl
Alkane
initiation propagation termination
ring flip
44. Formed by mixing different types of orbitals
electrophilic addition
hydroboration
hybridization
electrophilic addition of X2
45. Carbon with four different substituents and lack a plane of symmetry
sp2
polymerization
chiral center
triple bond
46. A = observed rotation / concentration * length
electrophilic addition of free radicals
quantum numbers
specific rotation
weak bases
47. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
electrophilic addition of X2
sp
diol
nonbonded strain
48. O3
chiral center
cold potassium permanganate
ozonolysis
combustion - disproportionation - free - radical substitution - pyrolysis
49. A sigma bond and two pi bonds
triple bond
aprotic solvent
Alkane
stereoisomers
50. 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.
Haloalkane
diastereomers
enantiomer
Alkyne