Section 16.2
Applications of Oxidation-Reduction Reactions
Practice Test
1.
Large deposits of solid, elemental __________ are formed in redox reactions near the vents of some volcanoes.
a.
chlorine
b.
hydrogen
c.
oxygen
d.
sulfur
Hint
2.
_______ are reduced when black-and-white photographic film is exposed to light.
a.
Ag
1+
ions
b.
Ag atoms
c.
Br atoms
d.
Br
1-
ions
Hint
3.
The fixer used in black-and-white photography contains ________________.
a.
barium ions
b.
chloride ions
c.
sulfur atoms
d.
thiosulfate ions
Hint
4.
___________ reduces iron ore to iron in a blast furnace.
a.
calcium
b.
calcium carbonate
c.
Carbon monoxide
d.
oxygen
Hint
5.
Most bleaches utilize reactions involving this chemical species.
a.
ClO
1-
b.
Cl
2
c.
NaOH
d.
ClO
3
1-
Hint
6.
As ethanol is oxidized in a breathalyzer, chromium in orange dichromate ions is reduced to ________________.
a.
black Cr atoms
b.
blue-green Cr
3+
ions
c.
colorless Cr
6+
ions
d.
yellow Cr
4+
ions
Hint
7.
Which type of can takes the longest to degrade?
a.
aluminum
b.
iron
c.
steel
d.
tin
Hint
8.
When aluminum metals reacts with the tarnish on silver, products of the reaction include ____________.
a.
Ag and Al
3+
b.
Ag
+
and Al
c.
Ag and H
+
d.
Al and OH
-
Hint
9.
Luminol is used in a preliminary test for _______________.
a.
blood
b.
clay
c.
milk
d.
saliva
Hint
10.
________________ reactions release light energy at room temperature.
a.
All redox
b.
Chemiluminescent redox
c.
decomposition
d.
Double-replacement
Hint
11.
The vitamin C in lemons is a/an ______________.
a.
carbohydrate
b.
corrosive compound
c.
good antioxidant
d.
oxidizing agent
Hint
12.
Bleach removes stain from clothing by ___________ colored molecules.
a.
dissolving
b.
oxidizing
c.
protecting
d.
reducing
Hint
13.
Some organisms use redox reactions to produce light in a process known as ______________.
a.
bioluminescence
b.
photosynhesis
c.
respiration
d.
photolysis
Hint
14.
What chemical species is the reducing agent in the reaction described in question 23?
a.
Br
-
b.
Br
2
c.
H
2
O
2
d.
O
-
Hint
15.
How does paint protect steel surfaces from corrosion?
a.
Paint acts as a sacrificial anode.
b.
Paint corrodes leaving steel intact.
c.
Paint galvanizes steel.
d.
Paint prevents the oxidation-reduction reaction of corrosion from occurring.
Hint
