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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. Lowest priority group projects into the page
relative configuration
disproportionation
absolute configuration
fischer projection
2. Charged - need electrons
configuration
electrophile
anti conformation
halogen
3. Zn/h or CH3/s with ozonolysis
covalent bond
angle strain
reducing
carboxylic acid
4. Use the Greek root for the number of carbons followed by the ending - - ane
gauche conformation
electrophilic addition of HX
Alkane nomenclature
hydroboration
5. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
structural isomers
ozonolysis
Ignored
diol
6. Diols with hydroxyl group on adjacent carbon
vicinal
molecular orbital
sp3
primary carbon
7. Most favorable of staggared conformations
stereoisomers
fischer projection
anti conformation
ring strain
8. Carbonyl located in middle or somewhere in chane. Named with One
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition
ketone
electrophilic addition of free radicals
9. 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
Alkane nomenclature
electrophilic addition
allyl
electrophilic addition of HX
10. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
ozonolysis
initiation propagation termination
amines
electrophilic addition of H2O
11. Name for ethanal
angle strain
acetaldehyde
aprotic solvent
markovnikov's rule
12. 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
y- root - en -x-yne
angle strain
protic solvent
chiral
13. 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.
pyrolysis
hydroboration
molecular orbital
Alkane nomenclature
14. A = observed rotation / concentration * length
specific rotation
Alkane
reducing
quantum numbers
15. Carbon with four different substituents and lack a plane of symmetry
electrophilic addition of HX
chiral center
aldehyde
2^n
16. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
methylene
halogenation
saturated hydrocarbon
enantiomer
17. Refers to the =CH2 group
geometric isomers
meso compound
molecular orbital
methylene
18. 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
electrophilic addition of HX
potassium permanganate
19. Most similar. same molecule only at different points in their rotation. show them with newmans projections
vicinal
conformational isomer
chiral
relative configuration
20. 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
electrophilic addition of free radicals
ethers
pyrolysis
polymerization
21. Formed by mixing different types of orbitals
absolute configuration
hybridization
fischer projection
Combustion
22. Carbon double bonded to an oxygen
Alkane
formaldehyde
carbonyl
conformational isomer
23. How many stereoisomers can a molecule have with n chiral centers
isomer
geminal
2^n
Vinyl
24. What are the best leaving groups?
cold potassium permanganate
anti conformation
weak bases
electrophilic addition of HX
25. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
stereoisomers
anti conformation
hot - acidic potassium permanganate
26. No double bonds. it has the maximum number of hydrogens.
acetaldehyde
enantiomer
angle strain
saturated hydrocarbon
27. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
conformational isomer
oxidizing
electrophilic addition of free radicals
electrophile
28. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
pyrolysis
aldehyde
Haloalkane
vicinal
29. Arise from angle strain - torsional strian and nonbonded strain
ring flip
ring strain
Ignored
alkyne
30. Compounds with halogen
Alkane
Haloalkane
saturated hydrocarbon
aprotic solvent
31. Functionality is specified by alkoxy- prefix. ROR
covalent bond
ethers
relative configuration
cold potassium permanganate
32. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
formaldehyde
Acetylene
ionic bond
33. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
electrophilic addition of H2O
not ignored
peroxycarboxylic acid
alkyne
34. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition
relative configuration
quantum numbers
chiral center
35. Steps of free radical substitution
configuration
initiation propagation termination
alcohol
hybridization
36. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
disproportionation
cold potassium permanganate
electrophile
reducing
37. O3
ozonolysis
Haloalkane
ethers
ring strain
38. When bond angles deviate from ideal values
oxidation
quantum numbers
angle strain
diol
39. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
aprotic solvent
sp
Vinyl
carboxylic acid
40. Goal is to produce most stable carbocation
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41. Object that is not superimposable upon mirror image
hydroboration
Alkane nomenclature
chiral
aprotic solvent
42. Carbon carbon triple bonds. Suffix-yne.
covalent bond
Alkyne
potassium permanganate
carbonyl
43. If reagent has a bunch of oxygen
oxidation
sp2
nonbonded strain
Alkene
44. Share molecular formula but have different chemical and physical properties
Vinyl
Acetylene
structural isomers
electrophilic addition
45. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
nonbonded strain
enantiomer
chiral center
sp
46. Common name for ethyne
amines
methylene
Acetylene
initiation propagation termination
47. Chain of carbons connected by single bonds with hydrogen atoms attached.
eclipsed conformation
Alkane
gauche conformation
torsional strain
48. What is produced when o3 with lialh4 or nabh4
racemic mixture
conformational isomer
configuration
alcohol
49. 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-
amines
mcpba
disproportionation
oxidation
50. Not solvated
ethers
amines
aprotic solvent
meso compound