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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. F - CL - Br - I
enantiomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
eclipsed conformation
halogen
2. Compounds with halogen
angle strain
Haloalkane
hydroboration
conformational isomer
3. Arise from angle strain - torsional strian and nonbonded strain
sp
diol
ring strain
sp3
4. Carbon double bonded to an oxygen
carbonyl
Alkane nomenclature
acetaldehyde
polymerization
5. 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-
cold potassium permanganate
y- root - en -x-yne
methylene
amines
6. Carbon with four different substituents and lack a plane of symmetry
racemic mixture
Vinyl
chiral center
combustion - disproportionation - free - radical substitution - pyrolysis
7. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
gauche conformation
peroxycarboxylic acid
vicinal
8. How many stereoisomers can a molecule have with n chiral centers
oxidizing
halogen
2^n
Vinyl
9. Di - tri - t - sec - n -
configuration
ozonolysis
geminal
Ignored
10. Carbon carbon triple bonds. Suffix-yne.
electrophile
Alkyne
chiral center
protic solvent
11. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
Alkane nomenclature
enantiomer
polymerization
structural isomers
12. Name for mathanal
enantiomer
nonbonded strain
formaldehyde
initiation propagation termination
13. Share molecular formula but have different chemical and physical properties
halogenation
electrophilic addition of X2
structural isomers
Alkane nomenclature
14. One s and three p orbitals
sp3
optical activity
Alkane
relative configuration
15. When bond angles deviate from ideal values
pi bond
angle strain
lindlar's catalyst
ethers
16. Carbonyl located in middle or somewhere in chane. Named with One
Alkane nomenclature
electrophilic addition of free radicals
ketone
methylene
17. Kmno4
potassium permanganate
carboxylic acid
vicinal
alkyne
18. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
diol
sigma bond
halogenation
nonbonded strain
19. Hydrocarbon with one or more carbon carbon triple bond
Acetylene
Haloalkane
Alkene
alkyne
20. Object that is not superimposable upon mirror image
nucleophile
chiral
enantiomer
protic solvent
21. Nucleus lover. electron rich species that are attracked to charged atoms
pi bond
nucleophile
geometric isomers
halogen
22. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
halogen
catalytic hydrogenation
ionic bond
23. N - l - ml - ms
quantum numbers
geometric isomers
y- root - en -x-yne
oxidizing
24. Not solvated
Alkane nomenclature
methylene
aprotic solvent
alkyne
25. Formed by mixing different types of orbitals
hybridization
combustion - disproportionation - free - radical substitution - pyrolysis
primary carbon
enantiomer
26. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
relative configuration
initiation propagation termination
amines
halogenation
27. Rotations cancel each other out therefore no optical activity
structural isomers
racemic mixture
molecular orbital
oxidation
28. A sigma bond and two pi bonds
covalent bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
enantiomer
triple bond
29. Charged - need electrons
polymerization
electrophile
electrophilic addition of HX
lindlar's catalyst
30. Monosubstituted ethylene
triple bond
Vinyl
achiral
ring strain
31. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ketone
ozonolysis
disproportionation
pyrolysis
32. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
anti conformation
weak bases
absolute configuration
achiral
33. 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
carbonyl
catalytic hydrogenation
racemic mixture
propionaldehyde
34. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
Acetylene
protic solvent
propionaldehyde
35. Name for propanal
primary carbon
electrophilic addition of HX
propionaldehyde
Alkane nomenclature
36. 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.
molecular orbital
ethers
ketone
enantiomer
37. 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
Alkene
weak bases
pyrolysis
allyl
38. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
sp3
achiral
molecular orbital
y- root - en -x-yne
39. If a compound is able to rotate plane polarized light.
optical activity
isomer
quantum numbers
carbonyl
40. Steps of free radical substitution
cold potassium permanganate
chiral center
initiation propagation termination
specific rotation
41. Most favorable of staggared conformations
racemic mixture
Haloalkane
anti conformation
formaldehyde
42. M - chloroperoxybenzoic acid
electrophilic addition of X2
sp2
alkyne
mcpba
43. What is produced when o3 with lialh4 or nabh4
alcohol
markovnikov's rule
eclipsed conformation
Acetylene
44. Most similar. same molecule only at different points in their rotation. show them with newmans projections
electrophilic addition of HX
enantiomer
conformational isomer
relative configuration
45. Same molecular formula but different structure
sp
geometric isomers
vicinal
isomer
46. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
propionaldehyde
optical activity
electrophilic addition of HX
Vinyl
47. 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
pyrolysis
Alkyne
markovnikov's rule
ethers
48. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
alkyne
chiral center
electrophilic addition of X2
disproportionation
49. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
stereoisomers
hydroboration
initiation propagation termination
sigma bond
50. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp2
disproportionation
sp
carbonyl