Name: _____________________________
1) ____ Which compound is a saturated hydrocarbon?
a)
b)
c)
d)
2)
____ The isomers butane and methylpropane differ in their
a)
b)
c)
d)
3)
an alpha particle
a beta particle
a neutron
a positron
____ A beta particle may be spontaneously emitted from
a)
b)
c)
d)
5)
molecular formulas
structural formulas
total number of atoms per molecule
total number of bonds per molecule
____ Which particle has the greatest mass?
a)
b)
c)
d)
4)
propanal
propane
propene
propyne
a ground-state electron
a stable nucleus
an excited electron
an unstable nucleus
____ Which formula represents 2-butene?
Base your answers to questions 6 through 8 on the information below.
During a bread-making process, glucose is converted to ethanol and carbon dioxide, causing the bread dough to rise.
Zymase, an enzyme produced by yeast, is a catalyst needed for this reaction.
6) Balance the equation provided for the reaction that causes bread dough to rise, using the smallest whole-number
coefficients.
7) In the space provided draw a structural formula for the
alcohol formed in this reaction.
7)
8) State the effect of zymase on the activation energy
for this reaction.
8)
9)
____ A straight-chain hydrocarbon that has only one double bond in each molecule has the general formula
a)
b)
c)
d)
CnH2n−6
CnH2n−2
CnH2n
CnH2n+2
Regents review – Organic Chemistry
1-1
Created: April 2008
Name: _____________________________
10)
____ Which reaction results in the production of soap?
a)
b)
c)
d)
11)
____ Ethanol and dimethyl ether have different chemical and physical properties because they have different
a)
b)
c)
d)
12)
esterification
fermentation
polymerization
saponification
functional groups
molecular masses
numbers of covalent bonds
percent compositions by mass
____ Which formula represents an unsaturated hydrocarbon?
Base your answers to questions 13 through 17 on the information below.
Biodiesel is an alternative fuel for vehicles that use petroleum diesel. Biodiesel is produced by reacting vegetable oil with
CH3OH. Methyl palmitate, C15H31COOCH3, a compound found in biodiesel, is made from soybean oil. One reaction of
methyl palmitate with oxygen is represented by the balanced equation below.
13) Write an IUPAC name for the compound that reacts with vegetable oil to produce biodiesel.___________________
14) Explain, in terms of both atoms and molecular structure, why there is no isomer of CH3OH.
15) Identify the class of organic compounds to which methyl palmitate belongs. .___________________
16) Identify the type of organic reaction represented by the balanced equation. .___________________
17) State evidence from the balanced equation that indicates the reaction is exothermic.
18)
____ What is the empirical formula of a compound that has a carbon-to-hydrogen ratio of 2 to 6?
a)
b)
c)
d)
CH3
C2H6
C3H
C6H2
Given the formula for an organic compound:
19) ____ This compound is classified as an
a) aldehyde
b) amine
c) ester
d) organic acid
Regents review – Organic Chemistry
2-2
Created: April 2008
Name: _____________________________
20) ____ Butanal and butanone have different chemical and physical properties primarily because of differences in their
a)
b)
c)
d)
functional groups
molecular masses
molecular formulas
number of carbon atoms per molecule
Base your answers to questions 21 through 23 on the information below.
The formula below represents a hydrocarbon.
21) Identify the homologous series to which this hydrocarbon belongs. ________________
22) Explain, in terms of carbon-carbon bonds, why this hydrocarbon is saturated.
23) In the space provided, draw a structural formula for one isomer of this hydrocarbon.
Regents review – Organic Chemistry
3-3
Created: April 2008