Question 1

When a zinc strip is placed in a copper sulfate solution,

Accepted Answer

A)  the copper solution will lose its blue color 
B)  the zinc will dissolve 
C)  black crystals of copper atoms appear 
D)  all of the above occur 
A)  the copper solution will lose its blue color 
B)  the zinc will dissolve 
C)  black crystals of copper atoms appear 
D)  all of the above occur D

Question 2

Which of the batteries listed below is a reusable battery?

Accepted Answer

A)  dry cell battery 
B)  mercury battery 
C)  alkaline battery 
D)  lead storage battery 
A)  dry cell battery 
B)  mercury battery 
C)  alkaline battery 
D)  lead storage battery D

Question 3

Which equation does not fit the definition of oxidation?

Accepted Answer

A)  Ag+ + e- $\rightarrow$  Ag 
B)  C2H6 $\rightarrow$ H2 + C2H4 
C)  C + O2 $\rightarrow$ CO2 
D)  Na $\rightarrow$  Na+ + e- 
A)  Ag+ + e- $\rightarrow$  Ag 
B)  C2H6 $\rightarrow$ H2 + C2H4 
C)  C + O2 $\rightarrow$ CO2 
D)  Na $\rightarrow$  Na+ + e- A

Question 4

Free radicals are particles that

Accepted Answer

A)  have an unpaired electron 
B)  act as oxidizing agents 
C)  grab another electron from a neighboring molecule 
D)  all of the above 
A)  have an unpaired electron 
B)  act as oxidizing agents 
C)  grab another electron from a neighboring molecule 
D)  all of the above

Question 5

Which of the following is a reduction of carbon?

Accepted Answer

A)  C + 2 H2$\rightarrow$ CH4 
B)  C + O2 $\rightarrow$ CO2 
C)  2 C + O2 $\rightarrow$  2 CO 
D)  C2+ $\rightarrow$ C4+ + 2e- 
A)  C + 2 H2$\rightarrow$ CH4 
B)  C + O2 $\rightarrow$ CO2 
C)  2 C + O2 $\rightarrow$  2 CO 
D)  C2+ $\rightarrow$ C4+ + 2e-

Question 6

Which molecule would be a good oxidizing agent?

Accepted Answer

A)  H2 
B)  SO2 
C)  C 
D)  H2O2 
A)  H2 
B)  SO2 
C)  C 
D)  H2O2

Question 7

Which of the following is not a definition of oxidation?

Accepted Answer

A)  loss of electrons 
B)  loss of hydrogen 
C)  loss of protons 
D)  addition of oxygen 
A)  loss of electrons 
B)  loss of hydrogen 
C)  loss of protons 
D)  addition of oxygen

Question 8

Which of the following is not necessary for corrosion of iron?

Accepted Answer

A)  iron 
B)  water 
C)  light 
D)  oxygen 
A)  iron 
B)  water 
C)  light 
D)  oxygen

Question 9

Oxidation always occurs

Accepted Answer

A)  with the loss of electrons 
B)  with the gain of electrons 
C)  with the gain of hydrogen 
D)  only for metal atoms and not ions 
A)  with the loss of electrons 
B)  with the gain of electrons 
C)  with the gain of hydrogen 
D)  only for metal atoms and not ions

Question 10

Reducing agents

Accepted Answer

A)  gain electrons and get oxidized 
B)  lose electrons and get reduced 
C)  gain electrons and get reduced 
D)  lose electrons and get oxidized 
A)  gain electrons and get oxidized 
B)  lose electrons and get reduced 
C)  gain electrons and get reduced 
D)  lose electrons and get oxidized

Question 11

What is a bleaching agent?

Accepted Answer

A)  oxidizes colored chemicals 
B)  reduces colored chemicals 
C)  oxidizes bleach 
D)  removes salts from hard water 
A)  oxidizes colored chemicals 
B)  reduces colored chemicals 
C)  oxidizes bleach 
D)  removes salts from hard water

Question 12

Electrolysis

Accepted Answer

A)  is the process of producing electricity 
B)  uses electrical energy to produce chemical change 
C)  is used to reduce aluminum ore to pure metal 
D)  both a and c 
A)  is the process of producing electricity 
B)  uses electrical energy to produce chemical change 
C)  is used to reduce aluminum ore to pure metal 
D)  both a and c

Question 13

Which molecule would be a good reducing agent?

Accepted Answer

A)  O2 
B)  O3 
C)  H2 
D)  H2O2 
A)  O2 
B)  O3 
C)  H2 
D)  H2O2

Question 14

In the equation SnO2(g) + 2 C(s) $\rightarrow$  Sn(s) + 2 CO(g), what substance is the reducing agent?

Accepted Answer

A)  SnO2 
B)  C 
C)  Sn 
D)  CO 
A)  SnO2 
B)  C 
C)  Sn 
D)  CO

Question 15

In the equation 2 Na(s) + Cl2(g) $\rightarrow$ 2 Na+ + 2 Cl-, the oxidizing agent is

Accepted Answer

A)  Na(s) 
B)  Cl2(g) 
C)  Na+ 
D)  Cl- 
A)  Na(s) 
B)  Cl2(g) 
C)  Na+ 
D)  Cl-

Question 16

Which of the following is not a definition of reduction?

Accepted Answer

A)  gain of electrons 
B)  gain of protons 
C)  gain of hydrogen 
D)  loss of oxygen 
A)  gain of electrons 
B)  gain of protons 
C)  gain of hydrogen 
D)  loss of oxygen

Question 17

In the electrolysis reaction, oxidation occurs at which electrode?

Accepted Answer

A)  cathode 
B)  anode 
C)  both electrodes 
D)  neither electrode 
A)  cathode 
B)  anode 
C)  both electrodes 
D)  neither electrode

Question 18

Which of the following is not an antioxidant vitamin?

Accepted Answer

A)  vitamin A 
B)  vitamin D 
C)  vitamin C 
D)  vitamin E 
A)  vitamin A 
B)  vitamin D 
C)  vitamin C 
D)  vitamin E

Question 19

Which is not an example of a primary battery?

Accepted Answer

A)  lead-acid automobile battery 
B)  alkaline battery 
C)  mercury battery 
D)  lithium battery 
A)  lead-acid automobile battery 
B)  alkaline battery 
C)  mercury battery 
D)  lithium battery

Question 20

Which of the following is a free radical?

Accepted Answer

A)  SO2 
B)  SO3 
C)  NO 
D)  N2O 
A)  SO2 
B)  SO3 
C)  NO 
D)  N2O

When a zinc strip is placed in a copper sulfate solution,

Which of the batteries listed below is a reusable battery?

Which equation does not fit the definition of oxidation?

Free radicals are particles that

Which of the following is a reduction of carbon?

Which molecule would be a good oxidizing agent?

Which of the following is not a definition of oxidation?

Which of the following is not necessary for corrosion of iron?

Oxidation always occurs

Reducing agents

What is a bleaching agent?

Electrolysis

Which molecule would be a good reducing agent?

In the equation SnO₂(g) + 2 C(s) $\rightarrow$ Sn(s) + 2 CO(g), what substance is the reducing agent?

In the equation 2 Na(s) + Cl₂(g) $\rightarrow$ 2 Na⁺ + 2 Cl^-, the oxidizing agent is

Which of the following is not a definition of reduction?

In the electrolysis reaction, oxidation occurs at which electrode?

Which of the following is not an antioxidant vitamin?

Which is not an example of a primary battery?

Which of the following is a free radical?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

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Exam 10: Oxidation-Reduction Reactions

When a zinc strip is placed in a copper sulfate solution,

Which of the batteries listed below is a reusable battery?

Which equation does not fit the definition of oxidation?

Free radicals are particles that

Which of the following is a reduction of carbon?

Which molecule would be a good oxidizing agent?

Which of the following is not a definition of oxidation?

Which of the following is not necessary for corrosion of iron?

Oxidation always occurs

Reducing agents

What is a bleaching agent?

Electrolysis

Which molecule would be a good reducing agent?

In the equation SnO2(g) + 2 C(s) →\rightarrow→ Sn(s) + 2 CO(g), what substance is the reducing agent?

In the equation 2 Na(s) + Cl2(g) →\rightarrow→ 2 Na+ + 2 Cl-, the oxidizing agent is

Which of the following is not a definition of reduction?

In the electrolysis reaction, oxidation occurs at which electrode?

Which of the following is not an antioxidant vitamin?

Which is not an example of a primary battery?

Which of the following is a free radical?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Filters

In the equation SnO₂(g) + 2 C(s) $\rightarrow$ Sn(s) + 2 CO(g), what substance is the reducing agent?

In the equation 2 Na(s) + Cl₂(g) $\rightarrow$ 2 Na⁺ + 2 Cl^-, the oxidizing agent is