Chemistry 116: General Chemistry
Syracuse University Project Advance
Exam #4, Spring 2008
Name
Date
The last page of each examination is a periodic table.
1. Indicate the missing word or words in the following definition: “Radioactive is the term used
to describe nuclides that possess ________ nuclei that spontaneously emit radiation.”
A.
B.
C.
D.
E.
unstable
abnormally large
nonspherical
abnormally small
elongated
2. The form of radioactivity that penetrates matter most easily is:
A.
B.
C.
D.
E.
alpha particles
beta particles
gamma rays
protons
neutrons
3. The alpha decay of
A.
B.
C.
D.
E.
222
86 Rn
produces a nuclide of ________.
Th
La
I
U
Po
4. Strontium-83 has a half life of 32 hours. What fraction of a 10 mg sample of 83Sr will be left
after 96 hours?
A.
B.
C.
D.
E.
50%
25%
12.5%
6.25%
3.13%
CHE 116
1
Spring 2008 Exam #4
5. Which is an example of beta particle bombardment?
A.
0
14
14
6 C  1  7 N
B.
0
87
87
37 Rb  1e  36 Kr
2
3
4
1
1 H  1 H  2 He  0 n
235
1
135
97
1
92 U  0 n  53 I  39 Y  4 0 n
C.
D.
6. Californium-251 undergoes ________ to produce curium-247.
251
98 Cf
A.
B.
C.
D.
E.
 247
96 Cm 
gamma-ray emission
beta-particle decay
neutron decay
alpha-particle decay
positron decay
7. The bombardment of 147 N with 10 n nuclei gives two products, one of which is 11 H. The other
product is ________.
A.
14
6C
B.
13
6C
C.
14
8N
D.
14
6N
E.
14
8N
8. A positron is produced in a nucleus by conversion of a ________.
A.
B.
C.
D.
E.
proton to a neutron
neutron to a proton
proton to an electron
neutron to an electron
electron to a neutron
CHE 116
2
Spring 2008 Exam #4
9. In the uranium-238 decay series, the first four decay processes are alpha decay followed by
two successive beta decays followed by another alpha decay. What is the intermediate
product produced after the first four decays of uranium-238?




238 
 
 
 
?
A.
B.
C.
D.
E.
234
Pa
Ra
230
Th
234
U
214
Bi
226
10. Paper acts as a shield against ________.
A.
B.
C.
D.
E.
alpha particles
beta particles
gamma rays
both alpha particles and beta particles
both beta particles and gamma rays
11. A Geiger counter operates on the principle that radiation ________.
A.
B.
C.
D.
E.
exposes photographic film
ionizes atoms and molecules
causes metals to conduct electricity
causes the temperature of water to increase
is accompanied by a clicking sound that can be amplified
12. In nuclear power plants ________.
A.
B.
C.
D.
E.
the fission process is used to generate steam to turn a turbine to produce electricity
uranium atoms are changed directly into electrical energy
steam is produced by passing water directly over a radioactive material
the principles of operation are very different from those for a coal-fired plant
emitted -particles are captured directly as electricity
13. A piece of steel pipe came out of a nuclear reactor with 1000 curies of 26Fe59 activity, which
has a half life of 45 days. Calculate how long it will be before the 26Fe59 activity falls to a
level of 10 curies.
A) 12 1/3 years
B) 6 years, 2 months
C) 299 days
D) 90 days
E) 45 Days
CHE 116
3
Spring 2008 Exam #4
14. When two atoms of 1H2 are fused to form one atom of 2He4, the total energy evolved is
3.83 x 10-12 J. What is the total change in mass for this reaction?
A) 1.28 x 10-17 g
B) 3.45 x 108 g
C) 4.26 x 10-26 g
D) 1.15 g
E) none of these
15. The following reaction is an example of
2
1H
+ 1H2  2He4 + 0n1 + energy
A) a nuclear fission reaction
B) a breeder reaction
C) a nuclear voltaic reaction
D) a nuclear fusion reaction
E) none of these
16. Alkanes are
A) saturated
B) polar
C) acidic
D) magnetic
E) reactive
17. How many hydrogen atoms are needed to complete the following hydrocarbon structure?
A)
B)
C)
D)
E)
4
6
5
3
0
CHE 116
4
Spring 2008 Exam #4
18. Which of the following is an unsaturated compound?
H
C
H
C
C
A.
H
C
H
C
H
H
B. CH3–CH3
C.
H2C
CH2
H2C
CH2
D. CH3-O-CH2-CH3
E. CH4
19. Which pair are geometric (cis/trans) isomers?
H3C
Cl
CH3
H3C
Cl
H3C
Cl
H3C
Cl
Cl
I
II
Cl
Cl
CH3
Cl
CH3
Cl
CH3
H3C
III
IV
CH3
Cl
V
A. I and II
B. III and V
C. I and IV
D. II and V
E. I and III
20. What is the IUPAC name for the following compound
CH2CH3
CH3CH CH2CHCH2CH3
CH3CHCH3
A. 2-isopropyl-4-ethylhexane
B. 2,3-dimethyl-5-ethylheptane
C. 3-ethyl-5,6-dimethylheptane
D. 4,4-diethyl-2-isopropylbutane
E. 2-propylisooctane
CHE 116
5
Spring 2008 Exam #4
21. A cyclic saturated hydrocarbon has six carbon atoms. Its molecular formula is
A. C6H6
B. C6H10
C. C6H12
D. C6H14
E. C6H16
22. A condensed structural formula for 2,2,3-trimethyl-4-octene is
CH3 CH3
[A]
CH3C
[D]
C CHCH2CH2CH2CH3
CH3CHCH CHCH2CH2CH3
CH3CCH3
CH3
CH3
CH2CH3
[B]
CH3
CH3 C C CH2CH3
CH3CCH3
[E]
CH3C
CH2CH2CH
CH2CH2CH3
CH3 CH3
CH3
CH3 CH3
[C] CH3C
CH2CH2CH2CH2CH2CH3
CH3
23. List, in order (i) through (iv), the functional group for each of the following compounds
(i)
O
H C CH3
(iii)
CH3CH2OCH2CH3
O
(ii)
CH3NH
CH2CH3
(iv) CH CH C CH
3
2
3
A. ketone, amide, ether, carboxylic acid
B. aldehyde, amide, ester, ketone
C. ester, amine, ether, ketone
D. aldehyde, amine, ether, ketone
E. carboxylic acid, amine, ketone, ester
CHE 116
6
Spring 2008 Exam #4