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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. Monosubstituted ethylene
alkyne
allyl
aprotic solvent
Vinyl
2. 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.
hybridization
diastereomers
geminal
combustion - disproportionation - free - radical substitution - pyrolysis
3. Formed by mixing different types of orbitals
sigma bond
hybridization
lindlar's catalyst
Alkane
4. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
initiation propagation termination
enantiomer
sp
specific rotation
5. 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.
torsional strain
molecular orbital
specific rotation
electrophilic addition of free radicals
6. Object that is not superimposable upon mirror image
aldehyde
chiral
quantum numbers
electrophilic addition of H2O
7. Name for propanal
structural isomers
reducing
propionaldehyde
y- root - en -x-yne
8. Diol with hydroxyl group on same carbon
sp2
geminal
electrophilic addition of X2
initiation propagation termination
9. 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
alcohol
saturated hydrocarbon
ozonolysis
protic solvent
10. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
chiral
ozonolysis
molecular orbital
methylene
11. Common name for ethyne
ethers
2^n
electrophile
Acetylene
12. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
molecular orbital
nonbonded strain
halogenation
relative configuration
13. What are the best leaving groups?
sigma bond
weak bases
peroxycarboxylic acid
sp2
14. 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
quantum numbers
nucleophile
pyrolysis
Ignored
15. How many stereoisomers can a molecule have with n chiral centers
Haloalkane
2^n
geminal
initiation propagation termination
16. Same molecular formula but different structure
chiral
alkyne
isomer
quantum numbers
17. N - l - ml - ms
saturated hydrocarbon
propionaldehyde
nucleophile
quantum numbers
18. M - chloroperoxybenzoic acid
Combustion
mcpba
optical activity
electrophilic addition of X2
19. Di - tri - t - sec - n -
Ignored
pyrolysis
torsional strain
formaldehyde
20. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane nomenclature
alcohol
optical activity
initiation propagation termination
21. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
enantiomer
basicity
peroxycarboxylic acid
alkyne
22. When bond angles deviate from ideal values
hydroboration
acetaldehyde
Alkene
angle strain
23. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
racemic mixture
enantiomer
fischer projection
24. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
electrophilic addition of free radicals
specific rotation
nonbonded strain
enantiomer
25. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
torsional strain
primary carbon
disproportionation
alcohol
26. Is bonded to only one other carbon atom
propionaldehyde
methylene
electrophilic addition of X2
primary carbon
27. Nucleus lover. electron rich species that are attracked to charged atoms
structural isomers
lindlar's catalyst
nucleophile
meso compound
28. A = observed rotation / concentration * length
specific rotation
sigma bond
electrophilic addition of free radicals
halogen
29. No double bonds. it has the maximum number of hydrogens.
stereoisomers
saturated hydrocarbon
nucleophile
mcpba
30. Carbon with four different substituents and lack a plane of symmetry
conformational isomer
vicinal
chiral center
halogenation
31. Two hydroxyl groups
diol
catalytic hydrogenation
Alkane
optical activity
32. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
not ignored
stereoisomers
oxidizing
sp
33. Not solvated
fischer projection
aprotic solvent
sp2
hydroboration
34. What is produced when o3 with lialh4 or nabh4
chiral
alcohol
2^n
electrophilic addition
35. Refers to the =CH2 group
methylene
hot - acidic potassium permanganate
alkyne
covalent bond
36. Lowest priority group projects into the page
halogenation
chiral
fischer projection
achiral
37. If reagent has a bunch of oxygen
oxidation
electrophilic addition of HX
enantiomer
geminal
38. Carbon double bonded to an oxygen
configuration
acetaldehyde
carbonyl
halogenation
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-
absolute configuration
amines
diastereomers
C3H8 + 5O2 = 3CO2 + 4H2O + heat
40. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
potassium permanganate
alcohol
covalent bond
pi bond
41. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
Alkene
ethers
ketone
cold potassium permanganate
42. Iso - neo - cyclo
not ignored
catalytic hydrogenation
diol
triple bond
43. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
carbonyl
formaldehyde
halogenation
hydroboration
44. Most similar. same molecule only at different points in their rotation. show them with newmans projections
methylene
not ignored
ionic bond
conformational isomer
45. Highest energy no separation. or 120 separation.
Alkene
primary carbon
eclipsed conformation
Alkyne
46. Spatial arrangement of the atoms or groups of a sterioisomer
not ignored
configuration
torsional strain
electrophile
47. Zn/h or CH3/s with ozonolysis
formaldehyde
reducing
basicity
lindlar's catalyst
48. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
triple bond
achiral
cold potassium permanganate
formaldehyde
49. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
hydroboration
oxidizing
Alkene
enantiomer
50. If a compound is able to rotate plane polarized light.
diastereomers
gauche conformation
optical activity
sp3