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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
mcpba
halogen
torsional strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
2. Object that is not superimposable upon mirror image
aprotic solvent
triple bond
chiral
diol
3. Zn/h or CH3/s with ozonolysis
oxidizing
markovnikov's rule
reducing
saturated hydrocarbon
4. Functionality is specified by alkoxy- prefix. ROR
isomer
ethers
combustion - disproportionation - free - radical substitution - pyrolysis
angle strain
5. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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6. Spatial arrangement of the atoms or groups of a sterioisomer
achiral
peroxycarboxylic acid
configuration
halogenation
7. One s and three p orbitals
electrophilic addition of free radicals
not ignored
sp3
hydroboration
8. Carbon with four different substituents and lack a plane of symmetry
covalent bond
weak bases
chiral center
molecular orbital
9. Di - tri - t - sec - n -
markovnikov's rule
isomer
Ignored
saturated hydrocarbon
10. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
stereoisomers
sp2
covalent bond
catalytic hydrogenation
11. Compounds with halogen
electrophile
lindlar's catalyst
Haloalkane
Combustion
12. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
not ignored
carboxylic acid
conformational isomer
electrophile
13. Steps of free radical substitution
C3H8 + 5O2 = 3CO2 + 4H2O + heat
initiation propagation termination
potassium permanganate
Haloalkane
14. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
potassium permanganate
geminal
ionic bond
pi bond
15. What are the best leaving groups?
sigma bond
weak bases
optical activity
specific rotation
16. A = observed rotation / concentration * length
halogenation
specific rotation
pyrolysis
carbonyl
17. Kmno4
potassium permanganate
polymerization
Vinyl
ionic bond
18. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
ozonolysis
y- root - en -x-yne
Ignored
Haloalkane
19. 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
chiral center
allyl
Acetylene
electrophilic addition of free radicals
20. Combustion reaction occurs through a radical process
specific rotation
electrophilic addition of free radicals
optical activity
C3H8 + 5O2 = 3CO2 + 4H2O + heat
21. Most similar. same molecule only at different points in their rotation. show them with newmans projections
achiral
2^n
conformational isomer
protic solvent
22. Share molecular formula but have different chemical and physical properties
formaldehyde
not ignored
structural isomers
conformational isomer
23. Rotations cancel each other out therefore no optical activity
protic solvent
Combustion
racemic mixture
optical activity
24. Nucleus lover. electron rich species that are attracked to charged atoms
sp3
racemic mixture
anti conformation
nucleophile
25. Chain of carbons connected by single bonds with hydrogen atoms attached.
absolute configuration
weak bases
Alkane
lindlar's catalyst
26. Name for ethanal
acetaldehyde
methylene
diol
isomer
27. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
potassium permanganate
sigma bond
diol
enantiomer
28. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
carbonyl
meso compound
sp
combustion - disproportionation - free - radical substitution - pyrolysis
29. One s and two p 120 degree apart
cold potassium permanganate
covalent bond
sp2
lindlar's catalyst
30. O3
ozonolysis
halogenation
conformational isomer
quantum numbers
31. Carbon carbon triple bonds. Suffix-yne.
Alkyne
sp
protic solvent
optical activity
32. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
molecular orbital
hydroboration
ring strain
ozonolysis
33. Lowest priority group projects into the page
nucleophile
ethers
fischer projection
specific rotation
34. Monosubstituted ethylene
Vinyl
Alkane nomenclature
Combustion
sp2
35. 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
Alkane
alkyne
hybridization
protic solvent
36. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
y- root - en -x-yne
2^n
optical activity
electrophilic addition of H2O
37. Diols with hydroxyl group on adjacent carbon
methylene
saturated hydrocarbon
vicinal
peroxycarboxylic acid
38. A molecule with an internal plane of symmetry
polymerization
Ignored
propionaldehyde
meso compound
39. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
conformational isomer
angle strain
Alkane nomenclature
40. 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.
oxidizing
molecular orbital
carbonyl
protic solvent
41. Arise from angle strain - torsional strian and nonbonded strain
formaldehyde
Combustion
aprotic solvent
ring strain
42. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
electrophilic addition of HX
Acetylene
ozonolysis
enantiomer
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
Ignored
hydroboration
hot - acidic potassium permanganate
chiral center
44. Not solvated
electrophilic addition of free radicals
aprotic solvent
quantum numbers
covalent bond
45. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
anti conformation
reducing
nucleophile
46. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
electrophilic addition of HX
ketone
initiation propagation termination
cold potassium permanganate
47. 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
meso compound
ionic bond
geometric isomers
catalytic hydrogenation
48. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
formaldehyde
structural isomers
geometric isomers
49. No double bonds. it has the maximum number of hydrogens.
polymerization
configuration
saturated hydrocarbon
halogenation
50. If reagent has a bunch of oxygen
protic solvent
basicity
Acetylene
oxidation