Question 1

Bromine can be produced by:

Accepted Answer

A)  oxidizing Cl2 with Br- 
B)  oxidizing Br- with Cl2 
C)  oxidizing Br- with I2 
D)  oxidizing I- with Br- 
E)  oxidizing F- with Br- 
A)  oxidizing Cl2 with Br- 
B)  oxidizing Br- with Cl2 
C)  oxidizing Br- with I2 
D)  oxidizing I- with Br- 
E)  oxidizing F- with Br-

Question 2

Choose the INCORRECT name/formula combination.

Accepted Answer

A)  ozone / O3 
B)  potassium superoxide / KO2 
C)  dioxygen / O2 
D)  carbon monoxide / C2O 
E)  trioxygen / O3 
A)  ozone / O3 
B)  potassium superoxide / KO2 
C)  dioxygen / O2 
D)  carbon monoxide / C2O 
E)  trioxygen / O3

Question 3

What is one of the important uses of KClO4?

Accepted Answer

A)  explosives 
B)  adhesives 
C)  lubricants 
D)  metal finishing 
E)  skin cleaning 
A)  explosives 
B)  adhesives 
C)  lubricants 
D)  metal finishing 
E)  skin cleaning

Question 4

Choose the INCORRECT name/symbol combination.

Accepted Answer

A)  Xe xenon 
B)  Ne neon 
C)  Kr krypton 
D)  Ar argon 
E)  Ra radon 
A)  Xe xenon 
B)  Ne neon 
C)  Kr krypton 
D)  Ar argon 
E)  Ra radon

Question 5

Which of the following has the lowest boiling point?

Accepted Answer

A)  bromine 
B)  fluorine 
C)  iodine 
D)  chlorine 
E)  astatine 
A)  bromine 
B)  fluorine 
C)  iodine 
D)  chlorine 
E)  astatine

Question 6

Which element is used as antiseptic and in medication for thyroid gland?

Accepted Answer

A)  Cl2 
B)  Br2 
C)  F2 
D)  H2 
E)  I2 
A)  Cl2 
B)  Br2 
C)  F2 
D)  H2 
E)  I2

Question 7

Give the molecular shape of SO42-.

Accepted Answer

A)  trigonal pyramidal 
B)  trigonal planar 
C)  tetrahedral 
D)  linear 
E)  octahedral 
A)  trigonal pyramidal 
B)  trigonal planar 
C)  tetrahedral 
D)  linear 
E)  octahedral

Question 8

Choose the INCORRECT statement.

Accepted Answer

A)  Hydrazine is N2H2. 
B)  Hydroxylamine is NH2OH. 
C)  Hydrazine and its derivatives are used as rocket fuels. 
D)  HN3 is hydrazoic acid. 
E)  Nitrogen is a key element in organic and biochemical molecules. 
A)  Hydrazine is N2H2. 
B)  Hydroxylamine is NH2OH. 
C)  Hydrazine and its derivatives are used as rocket fuels. 
D)  HN3 is hydrazoic acid. 
E)  Nitrogen is a key element in organic and biochemical molecules.

Question 9

Choose the INCORRECT name/formula combination.

Accepted Answer

A)  hydrogen chloride / HClO 
B)  sodium hydride / NaH 
C)  sodium hydrogen carbonate / NaHCO3 
D)  calcium hydride / CaH2 
E)  dihydrogen / H2 
A)  hydrogen chloride / HClO 
B)  sodium hydride / NaH 
C)  sodium hydrogen carbonate / NaHCO3 
D)  calcium hydride / CaH2 
E)  dihydrogen / H2

Question 10

Choose the INCORRECT statement.

Accepted Answer

A)  By electrode potentials, fluorine is the least reactive halogen. 
B)  Chlorine is prepared industrially by the electrolysis of NaCl. 
C)  Fluorine is usually prepared by electrolysis. 
D)  Bromine can be extracted from seawater. 
E)  Iodine is obtained commercially from inland brines or from sodium iodate deposits. 
A)  By electrode potentials, fluorine is the least reactive halogen. 
B)  Chlorine is prepared industrially by the electrolysis of NaCl. 
C)  Fluorine is usually prepared by electrolysis. 
D)  Bromine can be extracted from seawater. 
E)  Iodine is obtained commercially from inland brines or from sodium iodate deposits.

Question 11

Arrange the following in order of decreasing acid strength: HClO2, HClO3, HClO, HClO4

Accepted Answer

A)  HClO3 > HClO2 > HClO > HClO4 
B)  HClO > HClO2 > HClO3 > HClO4 
C)  HClO4 > HClO3 > HClO2 > HClO 
D)  HClO2 > HClO > HClO4 > HClO3 
E)  HClO3 > HClO > HClO4 > HClO2 
A)  HClO3 > HClO2 > HClO > HClO4 
B)  HClO > HClO2 > HClO3 > HClO4 
C)  HClO4 > HClO3 > HClO2 > HClO 
D)  HClO2 > HClO > HClO4 > HClO3 
E)  HClO3 > HClO > HClO4 > HClO2

Question 12

Write a balanced half equation for the following couple: NO3- NO2- (basic)

Accepted Answer

A)  NO3-  + 2 H+ + 2 e- → NO2- + H2O 
B)  NO3-  + 2 H2O + 2 e- → NO2- + 2 OH- + 2 H2O 
C)  NO3-  + H2O + 2 e- → NO2- + 2 OH- 
D)  NO3-  + H2O + e- → NO2- + OH- 
E)  NO3-  + H2 + e- → NO2- + OH- 
A)  NO3-  + 2 H+ + 2 e- → NO2- + H2O 
B)  NO3-  + 2 H2O + 2 e- → NO2- + 2 OH- + 2 H2O 
C)  NO3-  + H2O + 2 e- → NO2- + 2 OH- 
D)  NO3-  + H2O + e- → NO2- + OH- 
E)  NO3-  + H2 + e- → NO2- + OH-

Question 13

Choose the INCORRECT statement.

Accepted Answer

A)  Compounds with xenon in several oxidation states have been formed. 
B)  The eight outer shell electrons cause chemical inertness. 
C)  Xenon reacts directly only with fluorine. 
D)  Noble gases exist as diatomic molecules. 
E)  Most noble gas compounds contain either fluorine or oxygen. 
A)  Compounds with xenon in several oxidation states have been formed. 
B)  The eight outer shell electrons cause chemical inertness. 
C)  Xenon reacts directly only with fluorine. 
D)  Noble gases exist as diatomic molecules. 
E)  Most noble gas compounds contain either fluorine or oxygen.

Question 14

How much H2 (in liters) is produced at 65°C and 670. torr by the reaction of 75.7 g of zinc? 
Zn(s) + 2 H+(aq) → Zn2+(aq) + H2(g)

Accepted Answer

A)  188 L 
B)  2.33 L 
C)  9.22 L 
D)  36.4 L 
E)  95.8 L 
A)  188 L 
B)  2.33 L 
C)  9.22 L 
D)  36.4 L 
E)  95.8 L

Question 15

The pollution process in which oxygen depletion of natural waters by increased algae growth occurs because of contaminants such as excess phosphates is referred to as ________.

Accepted Answer

A)  anoxia 
B)  biodegradation 
C)  eutrophication 
D)  phosphorylation 
E)  saponification 
A)  anoxia 
B)  biodegradation 
C)  eutrophication 
D)  phosphorylation 
E)  saponification

Question 16

Choose the INCORRECT statement.

Accepted Answer

A)  H2O has a high boiling point because of covalent bonding. 
B)  Sulfur can form S8 molecules. 
C)  Compounds with O-O bonds are reactive. 
D)  H2O is a bent molecule. 
E)  H2O is a polar molecule. 
A)  H2O has a high boiling point because of covalent bonding. 
B)  Sulfur can form S8 molecules. 
C)  Compounds with O-O bonds are reactive. 
D)  H2O is a bent molecule. 
E)  H2O is a polar molecule.

Question 17

Pyrosulfuric is also called disulfuric H2S2O7. Pyrosulfuric acid may be synthesized by dissolving SO3 in ________.

Accepted Answer

A)  H2SO4 
B)  H2S2O8 
C)  H2SO3 
D)  H2O 
E)  H2S2O7 
A)  H2SO4 
B)  H2S2O8 
C)  H2SO3 
D)  H2O 
E)  H2S2O7

Question 18

Give the molecular shape of BrO3-.

Accepted Answer

A)  trigonal pyramidal 
B)  trigonal planar 
C)  tetrahedral 
D)  linear 
E)  octahedral 
A)  trigonal pyramidal 
B)  trigonal planar 
C)  tetrahedral 
D)  linear 
E)  octahedral

Question 19

Selenium is obtained by the Frasch process.

Accepted Answer

A) True 
 B)False

Question 20

"Halogen" means "soluble salts".

Accepted Answer

A) True 
 B)False

Exam 22: Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

Bromine can be produced by:

Choose the INCORRECT name/formula combination.

What is one of the important uses of KClO4?

Choose the INCORRECT name/symbol combination.

Which of the following has the lowest boiling point?

Which element is used as antiseptic and in medication for thyroid gland?

Give the molecular shape of SO42-.

Choose the INCORRECT statement.

Choose the INCORRECT name/formula combination.

Choose the INCORRECT statement.

Arrange the following in order of decreasing acid strength: HClO2, HClO3, HClO, HClO4

Write a balanced half equation for the following couple: NO3- NO2- (basic)

Choose the INCORRECT statement.

How much H2 (in liters) is produced at 65°C and 670. torr by the reaction of 75.7 g of zinc? Zn(s) + 2 H+(aq) → Zn2+(aq) + H2(g)

The pollution process in which oxygen depletion of natural waters by increased algae growth occurs because of contaminants such as excess phosphates is referred to as ________.

Choose the INCORRECT statement.

Pyrosulfuric is also called disulfuric H2S2O7. Pyrosulfuric acid may be synthesized by dissolving SO3 in ________.

Give the molecular shape of BrO3-.

Selenium is obtained by the Frasch process.

"Halogen" means "soluble salts".

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

What is one of the important uses of KClO₄?

Give the molecular shape of SO₄^2-.

Arrange the following in order of decreasing acid strength: HClO₂, HClO₃, HClO, HClO₄

Write a balanced half equation for the following couple: NO₃^- NO₂^- (basic)

How much H₂ (in liters) is produced at 65°C and 670. torr by the reaction of 75.7 g of zinc? Zn(s) + 2 H+(aq) → Zn₂+(aq) + H₂(g)

Pyrosulfuric is also called disulfuric H₂S2O₇. Pyrosulfuric acid may be synthesized by dissolving SO₃ in ________.

Give the molecular shape of BrO₃^-.