Question 1

Which of the following name/formula combinations is INCORRECT?

Accepted Answer

A) dioxygen/O2  
B) familiar oxygen/O 
C) trioxygen/O3  
D) carbon dioxide/CO2  
E) potassium superoxide/KO2  
A) dioxygen/O2  
B) familiar oxygen/O 
C) trioxygen/O3  
D) carbon dioxide/CO2  
E) potassium superoxide/KO2

Question 2

What is the correct completion of the reaction: IO3-(aq)+ HSO3-(aq)→

Accepted Answer

A) IO3-(aq)+ 3 HSO3-(aq)→ I-(aq)+ 3 SO42-(aq)+ 3 H+(aq)  
B) IO3-(aq)+ HSO3-(aq)→ IO2-(aq)+ HSO4-(aq)  
C) 2 IO3-(aq)+ 3 HSO3-(aq)→ I2(s)+ HSO4-(aq)+ O3-(aq)  
D) IO3-(aq)+ HSO3-(aq)→ IO4-(aq)+ HSO2-(aq)  
E) IO3-(aq)+ 2 HSO3-(aq)→ S2I(aq)+ H2O(l)+ 4 O2(g)  
A) IO3-(aq)+ 3 HSO3-(aq)→ I-(aq)+ 3 SO42-(aq)+ 3 H+(aq)  
B) IO3-(aq)+ HSO3-(aq)→ IO2-(aq)+ HSO4-(aq)  
C) 2 IO3-(aq)+ 3 HSO3-(aq)→ I2(s)+ HSO4-(aq)+ O3-(aq)  
D) IO3-(aq)+ HSO3-(aq)→ IO4-(aq)+ HSO2-(aq)  
E) IO3-(aq)+ 2 HSO3-(aq)→ S2I(aq)+ H2O(l)+ 4 O2(g)

Question 3

Oxygen is obtained commercially from air by fractional distillation.

Accepted Answer

A) True 
 B)False

Question 4

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 5

The most reactive of the nonmetallic elements is ________.

Accepted Answer

A) xenon 
B) nitrogen 
C) iodine 
D) helium 
E) fluorine 
A) xenon 
B) nitrogen 
C) iodine 
D) helium 
E) fluorine

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

Choose the INCORRECT name/formula combination.

Accepted Answer

A) carbon dioxide CO2  
B) potassium superoxide KO2  
C) dioxygen O2  
D) carbon monoxide C2O 
E) trioxygen O3  
A) carbon dioxide CO2  
B) potassium superoxide KO2  
C) dioxygen O2  
D) carbon monoxide C2O 
E) trioxygen O3

Question 8

Which of the following has the highest boiling point?

Accepted Answer

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

Question 9

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 10

Write an equation for the oxidation in aqueous acidic solution of Mn2+(aq)to MnO4-(aq)by XeO3(aq),which is reduced to Xe(g).

Accepted Answer

A) 6 Mn2(aq)+ + 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g) 
B) 24 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)  
C) H2O(l)+ Mn2+(aq)+ XeO3(aq)→ MnO4-(aq)+ Xe(g)+ 2 H+(aq)  
D) 24 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)+ 30 H+(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 15 H2O + 48 H+(aq)  
E) 9 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)  
A) 6 Mn2(aq)+ + 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g) 
B) 24 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)  
C) H2O(l)+ Mn2+(aq)+ XeO3(aq)→ MnO4-(aq)+ Xe(g)+ 2 H+(aq)  
D) 24 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)+ 30 H+(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 15 H2O + 48 H+(aq)  
E) 9 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)

Question 11

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 12

How much hydrogen (in liters at STP)is required to change 857 kg of diisobutylene to isooctane? Molar mass of diisobutylene is 112.2 grams.
CH3C(CH3)2CH=C(CH3)2 + H2 → CH3C(CH3)2CH2CH(CH3)2

Accepted Answer

A) 15.4 L 
B) 1.71 × 105 L 
C) 8.55 × 104 L 
D) 3.42 × 105 L 
E) 30.8 L 
A) 15.4 L 
B) 1.71 × 105 L 
C) 8.55 × 104 L 
D) 3.42 × 105 L 
E) 30.8 L

Question 13

Hydrogen bonded with any metals form compounds called ionic hydrides.

Accepted Answer

A) True 
 B)False

Question 14

Choose the INCORRECT statement.

Accepted Answer

A) Acid anhydrides plus water generate an acid. 
B) H5P3O10 is diphosphoric acid or pyrophosphoric acid. 
C) H3PO3 is phosphorous acid. 
D) H3PO4 is phosphoric acid. 
E) Phosphorus is very important in biochemistry as ADP and ATP. 
A) Acid anhydrides plus water generate an acid. 
B) H5P3O10 is diphosphoric acid or pyrophosphoric acid. 
C) H3PO3 is phosphorous acid. 
D) H3PO4 is phosphoric acid. 
E) Phosphorus is very important in biochemistry as ADP and ATP.

Question 15

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 16

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 17

Which element is in a family that contains a metal,a nonmetal,and a metalloid?

Accepted Answer

A) chlorine 
B) nitrogen 
C) iodine 
D) calcium 
E) none of these 
A) chlorine 
B) nitrogen 
C) iodine 
D) calcium 
E) none of these

Question 18

In a reaction between XeO3(aq)and Mn2+(aq)that occurred in 324 mL of aqueous solution,the gaseous Xe produced occupied a volume of 595 mL at STP.What is the molarity of the MnO4-(aq)solution resulting from the reaction?
9 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)

Accepted Answer

A) 0.0983 M 
B) 0.0683 M 
C) 0.00292 M 
D) 0.0820 M 
E) 0.00203 M 
A) 0.0983 M 
B) 0.0683 M 
C) 0.00292 M 
D) 0.0820 M 
E) 0.00203 M

Question 19

What is the correct completion of the reaction: X2 + OH- → where X is a halogen

Accepted Answer

A) X2 + 2 OH- → 2 XOH 
B) X2 + 4 OH- → 2 X(OH)2  
C) X2 + 2 OH- → XO2 + XH2  
D) X2 + 2 OH- → OX- + X- + H2O 
E) X2 + OH- → no reaction 
A) X2 + 2 OH- → 2 XOH 
B) X2 + 4 OH- → 2 X(OH)2  
C) X2 + 2 OH- → XO2 + XH2  
D) X2 + 2 OH- → OX- + X- + H2O 
E) X2 + OH- → no reaction

Question 20

Write a balanced half equation for the following couple: 
 NH4+(aq)(acidic)

Accepted Answer

A) NO3-(aq) + 3 H2O(l)→ NH4+(aq) + 10 H+(aq) + 8 e-  
B) NO3-(aq) + 4 H+(aq) + 3 e- → NH4+(aq) + 3 H2O(l) 
C) NO3-(aq) + 4 H+(aq) → NH4+(aq) + 3 H2O(l)+ e-  
D) NO3-(aq) + 8 H+(aq) + 8 e- → NH4+(aq) + 3 H2O(l) 
E) NO3-(aq) + 10 H+(aq) + 8 e- → NH4+(aq) + 3 H2O(l) 
A) NO3-(aq) + 3 H2O(l)→ NH4+(aq) + 10 H+(aq) + 8 e-  
B) NO3-(aq) + 4 H+(aq) + 3 e- → NH4+(aq) + 3 H2O(l) 
C) NO3-(aq) + 4 H+(aq) → NH4+(aq) + 3 H2O(l)+ e-  
D) NO3-(aq) + 8 H+(aq) + 8 e- → NH4+(aq) + 3 H2O(l) 
E) NO3-(aq) + 10 H+(aq) + 8 e- → NH4+(aq) + 3 H2O(l)

Exam 22: Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

Which of the following name/formula combinations is INCORRECT?

What is the correct completion of the reaction: IO3-(aq)+ HSO3-(aq)→

Oxygen is obtained commercially from air by fractional distillation.

Choose the INCORRECT statement.

The most reactive of the nonmetallic elements is ________.

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

Choose the INCORRECT name/formula combination.

Which of the following has the highest boiling point?

Give the molecular shape of BrO3-.

Write an equation for the oxidation in aqueous acidic solution of Mn2+(aq)to MnO4-(aq)by XeO3(aq),which is reduced to Xe(g).

Choose the INCORRECT statement.

How much hydrogen (in liters at STP)is required to change 857 kg of diisobutylene to isooctane? Molar mass of diisobutylene is 112.2 grams. CH3C(CH3)2CH=C(CH3)2 + H2 → CH3C(CH3)2CH2CH(CH3)2

Hydrogen bonded with any metals form compounds called ionic hydrides.

Choose the INCORRECT statement.

What is one of the important uses of KClO4?

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 ________.

Which element is in a family that contains a metal,a nonmetal,and a metalloid?

In a reaction between XeO3(aq)and Mn2+(aq)that occurred in 324 mL of aqueous solution,the gaseous Xe produced occupied a volume of 595 mL at STP.What is the molarity of the MnO4-(aq)solution resulting from the reaction? 9 H2O(l)+ 6 Mn2+(aq)+ 5 XeO3(aq)→ 6 MnO4-(aq)+ 5 Xe(g)+ 18 H+(aq)

What is the correct completion of the reaction: X2 + OH- → where X is a halogen

Write a balanced half equation for the following couple: NH4+(aq)(acidic)

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: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

What is the correct completion of the reaction: IO₃^-(aq)+ HSO₃^-(aq)→

Give the molecular shape of BrO₃^-.

Write an equation for the oxidation in aqueous acidic solution of Mn²⁺(aq)to MnO₄^-(aq)by XeO₃(aq),which is reduced to Xe(g).

How much hydrogen (in liters at STP)is required to change 857 kg of diisobutylene to isooctane? Molar mass of diisobutylene is 112.2 grams. CH₃C(CH₃)2CH=C(CH₃)₂ + H₂ → CH₃C(CH₃)₂CH₂CH(CH₃)₂

What is one of the important uses of KClO₄?

What is the correct completion of the reaction: X₂ + OH^- → where X is a halogen

Write a balanced half equation for the following couple: NH₄⁺(aq)(acidic)