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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. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
sp2
structural isomers
electrophilic addition of X2
2. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
structural isomers
disproportionation
reducing
aldehyde
3. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
electrophilic addition of X2
Alkane nomenclature
eclipsed conformation
acetaldehyde
4. One s and three p orbitals
Alkyne
oxidizing
sp3
stereoisomers
5. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
covalent bond
achiral
nonbonded strain
6. Use the Greek root for the number of carbons followed by the ending - - ane
eclipsed conformation
Alkane nomenclature
absolute configuration
aldehyde
7. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
Alkane nomenclature
halogenation
electrophilic addition of free radicals
aprotic solvent
8. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
halogenation
electrophilic addition of X2
sp
Acetylene
9. Name for ethanal
reducing
peroxycarboxylic acid
racemic mixture
acetaldehyde
10. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
cold potassium permanganate
methylene
chiral
11. Diol with hydroxyl group on same carbon
electrophilic addition of H2O
aprotic solvent
geminal
amines
12. Arise from angle strain - torsional strian and nonbonded strain
covalent bond
quantum numbers
carboxylic acid
ring strain
13. Transfer of electrions from one atome to another
acetaldehyde
isomer
formaldehyde
ionic bond
14. Two hydroxyl groups
ozonolysis
ring strain
diol
Acetylene
15. Hydrocarbon with one or more carbon carbon triple bond
alkyne
hydroboration
oxidation
ethers
16. M - chloroperoxybenzoic acid
mcpba
Vinyl
sp2
diastereomers
17. Formed by mixing different types of orbitals
fischer projection
Combustion
hybridization
diastereomers
18. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
gauche conformation
ring strain
oxidizing
relative configuration
19. 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.
optical activity
molecular orbital
absolute configuration
weak bases
20. 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
ring flip
oxidizing
catalytic hydrogenation
allyl
21. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Alkane nomenclature
electrophilic addition of free radicals
Combustion
mcpba
22. Di - tri - t - sec - n -
Combustion
Ignored
halogen
geminal
23. Kmno4
potassium permanganate
fischer projection
ozonolysis
pyrolysis
24. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
cold potassium permanganate
ring strain
diol
2^n
25. Name for mathanal
Vinyl
formaldehyde
chiral
electrophilic addition of HX
26. 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
molecular orbital
pyrolysis
carbonyl
nucleophile
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
anti conformation
propionaldehyde
allyl
carbonyl
28. Results when cyclic molecules must assume conformations that have eclipsed interactions
aldehyde
torsional strain
absolute configuration
Alkyne
29. Steps of free radical substitution
initiation propagation termination
aldehyde
weak bases
primary carbon
30. A sigma bond and two pi bonds
Combustion
triple bond
vicinal
molecular orbital
31. Same molecular formula but different structure
primary carbon
pi bond
isomer
fischer projection
32. A molecule with an internal plane of symmetry
potassium permanganate
meso compound
hydroboration
diastereomers
33. F - CL - Br - I
halogenation
geometric isomers
halogen
electrophilic addition of H2O
34. 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.
quantum numbers
specific rotation
ozonolysis
diastereomers
35. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
ring strain
peroxycarboxylic acid
electrophilic addition of X2
36. Share molecular formula but have different chemical and physical properties
hydroboration
structural isomers
primary carbon
pyrolysis
37. Combustion reaction occurs through a radical process
hydroboration
anti conformation
oxidation
C3H8 + 5O2 = 3CO2 + 4H2O + heat
38. Common name for ethyne
formaldehyde
ring flip
Acetylene
configuration
39. Sharing of electron between atoms
aldehyde
hybridization
covalent bond
isomer
40. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
electrophile
aprotic solvent
hot - acidic potassium permanganate
41. Functionality is specified by alkoxy- prefix. ROR
ethers
carbonyl
lindlar's catalyst
specific rotation
42. Object that is not superimposable upon mirror image
oxidizing
chiral
covalent bond
geminal
43. When boat flips
protic solvent
carboxylic acid
ring flip
fischer projection
44. No double bonds. it has the maximum number of hydrogens.
nonbonded strain
ozonolysis
saturated hydrocarbon
Combustion
45. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
sp2
relative configuration
methylene
pi bond
46. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
Acetylene
ketone
isomer
electrophilic addition of H2O
47. 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-
gauche conformation
amines
pi bond
diol
48. Zn/h or CH3/s with ozonolysis
potassium permanganate
reducing
electrophile
electrophilic addition of X2
49. Not solvated
vicinal
configuration
aprotic solvent
structural isomers
50. N - l - ml - ms
quantum numbers
pyrolysis
covalent bond
amines