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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. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
Haloalkane
y- root - en -x-yne
protic solvent
disproportionation
2. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
sp3
oxidizing
polymerization
covalent bond
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
pyrolysis
pi bond
Alkene
4. O3
sp3
halogenation
eclipsed conformation
ozonolysis
5. Not solvated
anti conformation
aprotic solvent
basicity
allyl
6. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
propionaldehyde
disproportionation
Alkane
protic solvent
7. N - l - ml - ms
oxidizing
quantum numbers
sp2
gauche conformation
8. Name for mathanal
propionaldehyde
formaldehyde
electrophilic addition of free radicals
hybridization
9. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
carboxylic acid
aldehyde
enantiomer
stereoisomers
10. Carbon carbon triple bonds. Suffix-yne.
torsional strain
aldehyde
Alkyne
halogen
11. Functionality is specified by alkoxy- prefix. ROR
enantiomer
potassium permanganate
eclipsed conformation
ethers
12. Highest energy no separation. or 120 separation.
vicinal
hot - acidic potassium permanganate
eclipsed conformation
Alkyne
13. No double bonds. it has the maximum number of hydrogens.
saturated hydrocarbon
electrophilic addition of X2
2^n
propionaldehyde
14. When boat flips
triple bond
ring flip
optical activity
y- root - en -x-yne
15. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
sigma bond
stereoisomers
ketone
achiral
16. 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.
angle strain
y- root - en -x-yne
vicinal
molecular orbital
17. 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
ring strain
initiation propagation termination
protic solvent
catalytic hydrogenation
18. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
anti conformation
torsional strain
basicity
19. Diol with hydroxyl group on same carbon
geminal
sp2
chiral
ketone
20. Rotations cancel each other out therefore no optical activity
disproportionation
molecular orbital
racemic mixture
C3H8 + 5O2 = 3CO2 + 4H2O + heat
21. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane nomenclature
aprotic solvent
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Ignored
22. Name for ethanal
acetaldehyde
Combustion
alkyne
weak bases
23. Formed by mixing different types of orbitals
primary carbon
sp2
isomer
hybridization
24. One s and three p orbitals
gauche conformation
sp3
structural isomers
protic solvent
25. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
saturated hydrocarbon
peroxycarboxylic acid
quantum numbers
sp3
26. Most favorable of staggared conformations
carboxylic acid
anti conformation
primary carbon
lindlar's catalyst
27. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
conformational isomer
specific rotation
chiral
hot - acidic potassium permanganate
28. Most similar. same molecule only at different points in their rotation. show them with newmans projections
ozonolysis
2^n
conformational isomer
Combustion
29. Share molecular formula but have different chemical and physical properties
halogen
amines
sigma bond
structural isomers
30. Refers to the =CH2 group
eclipsed conformation
alkyne
Alkene
methylene
31. Alphabetical order of alkane rxn
weak bases
combustion - disproportionation - free - radical substitution - pyrolysis
catalytic hydrogenation
quantum numbers
32. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
initiation propagation termination
disproportionation
enantiomer
sigma bond
33. Arise from angle strain - torsional strian and nonbonded strain
anti conformation
reducing
Alkane
ring strain
34. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
racemic mixture
mcpba
specific rotation
35. Methyl are 60 degrees apart. kinda stable
oxidation
gauche conformation
ethers
hybridization
36. Lowest priority group projects into the page
ethers
fischer projection
structural isomers
allyl
37. Goal is to produce most stable carbocation
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38. 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
nonbonded strain
catalytic hydrogenation
racemic mixture
chiral
39. F - CL - Br - I
diol
optical activity
Ignored
halogen
40. Same molecular formula but different structure
meso compound
Acetylene
isomer
molecular orbital
41. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
Acetylene
acetaldehyde
ozonolysis
oxidation
42. 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
configuration
markovnikov's rule
absolute configuration
43. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
halogen
allyl
carboxylic acid
stereoisomers
44. Common name for ethyne
conformational isomer
carbonyl
Acetylene
torsional strain
45. M - chloroperoxybenzoic acid
pyrolysis
Alkane
mcpba
meso compound
46. 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.
diastereomers
aldehyde
combustion - disproportionation - free - radical substitution - pyrolysis
absolute configuration
47. A = observed rotation / concentration * length
achiral
Vinyl
carbonyl
specific rotation
48. 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
ionic bond
allyl
potassium permanganate
nucleophile
49. Nucleus lover. electron rich species that are attracked to charged atoms
hydroboration
relative configuration
structural isomers
nucleophile
50. One s and two p 120 degree apart
sp2
electrophilic addition
hybridization
Alkene