Laguna State Polytechnic University Los
Baños Campus
College
of Food, Nutrition, and Dietetics
INORGANIC & ORGANIC CHEMISTRY
Final
Exam, First Semester, A.Y. 2016-17
Prepared by: Ramon E. Legaspi
A. MULTIPLE CHOICES.
Select the best answer that corresponds to the question(s) or problem(s) for each item. Answer in CAPITAL letters. (2 pts. each, total=80 pts.)
1. The
electronic configuration for an element containing 15 protons would be
a. 1s22s22p63s23p6 c. 1s22s22p63s23p64s2
b. b.
1s22s22p63s24p3 d. 1s22s22p63s23p3
2. Elements
in the same group
a. have
similar chemical properties. c.
are called isotopes.
b. have
consecutive atomic numbers. d.
constitute a period of elements.
3. The
maximum number of electrons that may
occupy a 4d orbital is
a. 10 b. 4 c. 2 d. 8
4. The
name of the covalent compound PCl3 is:
a. trichlorophosphide. c.
phosphorus trichloride.
b. phosphorus
trichlorine. d.
phosphorus chloride.
5. The
name for OF2 is
a. monoxide
difluoride c.
oxygen fluorine
b. oxygen
difluorine d.
oxygen difluoride
6. How
many electrons would be contained in the valence shell of an atom in grp
VIA(16)?
a. 6 b. 2 c. 4 d. 16
7. 
Which of the following
is a correct electron dot formula for sulfur (element 6)?
Which of the following
is a correct electron dot formula for sulfur (element 6)?
a. 
b. c. d.
b. c. d.
8. The
formula for the compound formed between the elements Ba and O would be:
a. BaO b. Ba2O c. Ba02 d. Ba2O3
9. The
formula for the ionic compound containing Al3+ and SO42-
ions would be:
a. Al(SO4)2 b. AlSO4 c. Al3(SO4)2 d. Al2(SO4)3
10. The
expected formula of the molecule formed when nonmetals C and H combine in
compliance with the octet rule is:
a. CH4 b.
CH2 c.
C4H d.
CH3
11. Which
element has the electronic configuration 1s22s22p63s23p6?
a. Ne b. Ar c. K d. Kr
12. The
compound MgSO4 is correctly named:
a. magnesium
sulfur tetroxide. c.
magnesium sulfide.
b. magnesium
sulfoxide. d.
magnesium sulfate.
13. According
to the VSEPR theory, the shape of OF2 will be
a. linear b. bent c. triangle d. tetrahedral
14. Which
of the following is a reactant in the reaction: 2H+ + CaCO3à H2O
+ Ca2+ + CO2
a.
H2O b. H+ c. Ca2+ d. CO2
15. A
decomposition reaction can also be classified as:
a.
a combination reaction. c. a double-replacement
reaction.
b.
a single replacement reaction. d. a redox or non-redox
reaction.
16. In a
redox reaction, the reducing agent:
a.
is reduced. c. gains electrons.
b.
is oxidized. d. contains an element whose
oxidation no. decreases.
17. The
density of ether is 0.736 g/mL. How much would 20.0 mL of ether weigh?
a. 14.7
g b. 1.47 g c. 2.72 g d. 27.2 g
18. Calculate
the density of a swimmer who weighs 40.0 kg and occupies a volume of 45.0
liters.
a. 0.899
g/mL b. 0.0088 g/ mL c. 1.12 g/mL d. 0.0112 g/mL
19.
A solution is prepared by dissolving a
small amount of sugar in a large amount of water. In this case, sugar would be
the:
a. filtrate. b. solute. c. precipitate. d. solvent.
20. Which
of the following would show the Tyndall effect?
a. a
solution of salt in water. c. a solution of CO2
gas in water.
b. a
solution of sugar in water. d.
a colloidal suspension.
33. Which of the following involves a chemical change?
a. stretching a rubber band c. lighting a candle
b. breaking a stick d. melting an
ice cube
34. A
solid substance is subjected to a number of test and observations. Which of the
following
would be classified as a chemical property of the
substance?
a. It is gray in
color. c. It dissolves in acid and a gas is
liberated.
b. It has a
density of 2.04 g/mL. d.
It is not attracted to either pole of a magnet.
35. Which of the following is an example of heterogeneous matter?
a.
water containing sand c. a pure sample of iron
b.
a sample of salt water d. a sample of pure table salt
36. When a substance undergoes a physical change, which of the following
is always true?
a.
It melts. c.
Heat is given off.
b.
A new substance is produced. d. The
molecular composition is unchanged.
37. Which of the following is the
basic unit of length in the metric system?
a.
centimeter b. meter c. millimeter d. kilometer
38. How many significant figures are included in the number 0.02102?
a.
two b. three c. four d. five
39.
On a hot day, a Fahrenheit thermometer reads 97.3°F. What would this reading be
on
a
Celsius thermometer?
a.
118°C b. 22.1°C c. 36.3°C d. 143°C
40.
The density of a 1 mL sample of a patient’s blood is 1.08 g/mL. The density of
a pint of
blood taken at the same time from the
same patient would be ________ 1.08 g/mL.
a.
greater than b. equal to c. less than d. more than one possible answer
B. Essay ( Total points = 30)
1.
Differentiate organic compounds
from inorganic compounds. ( 10 points)
2.
What is unique about Carbon
atom that makes it form numerous compounds ( 5 points)
3.
Describe sp3 , sp2
and sp hybridization of Carbon. (5 points)
4.
Define isomers” ( 5 points)
5.
What is Organic chemistry? (5
points)
C. Matching type ( 10 X 2= 20 points)
Column A Column
B
__1. Found in sour milk a.
Nicotine
__2. Used as pain reliever b.
Esters
__3. Found in tobacco
leaves c.
Amphetamine
__4. Used as fuels d.
Hydrocarbons
__5. Combination of acid
and alcohol e.
Aspirin
__6. 40% formaldehyde
solution f.
Histamine
__7. Used as depressants g.
Barbiturates
__8. Contained 12%
alcohol/ has 24 proof h. Lactic acid
__9. Responsible for
allergic reaction i.
Formalin
__10.Used as stimulant j.
wine
Laguna State Polytechnic University Los
Baños Campus
College
of Food, Nutrition, and Dietetics
INORGANIC & ORGANIC CHEMISTRY
Final
Exam, First Semester, A.Y. 2016-17
Prepared by: Ramon E. Legaspi
à ANSWER SHEET ß
NAME: DATE submitted
to email:
INSTRUCTOR: Total
score: / 130
REMINDERS:
Follow the instructions carefully. For every erasure, incorrect or no answer in
Test A and C, means ¼ point (0.25) deduction from your actual score.
Thank
you! Send your answer at sirmonchemistry@gmail.com or sirmonlegaspi@gmail.com. Once
you have sent it, please send me a message at Smart-0998 5770074 or Globe TM-
0975 7369172
|
Test A. Multiple Choice ( total 80 points)
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Test C. Matching
Type (20 points )
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1
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11
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21
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31
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1
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2
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12
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22
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32
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2
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3
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|
13
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23
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33
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3
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|
|
|
4
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|
14
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|
24
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34
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4
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5
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15
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25
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35
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5
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6
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|
16
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26
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36
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6
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7
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|
17
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27
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37
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7
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8
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18
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28
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38
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8
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9
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19
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29
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39
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9
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10
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20
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30
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40
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10
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Test B.
ESSAY (30 points) LIMIT YOUR ANSWER TO 150 WORDS FOR EVERY NUMBER
1.
2.
3.
4.
5.
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