Question 1

In a hypohalous acid the oxidation state of the halogen is __________.

Accepted Answer

The answer of In a hypohalous acid the oxidation state...

Question 2

Which halogen is the most easily oxidized?

Accepted Answer

A) F 
B) Cl 
C) Br 
D) I 
A) F 
B) Cl 
C) Br 
D) I

Question 3

Low levels of arsenic consumption can lead to __________ or bladder cancer.

Accepted Answer

The answer of Low levels of arsenic consumption can lead...

Question 4

The oxidation state of fluorine in its compounds is

Accepted Answer

A) positive unless it combines with another halogen. 
B) negative unless it combines with another halogen. 
C) negative unless it combines with oxygen. 
D) negative unless it combines with an active metal. 
E) always negative. 
A) positive unless it combines with another halogen. 
B) negative unless it combines with another halogen. 
C) negative unless it combines with oxygen. 
D) negative unless it combines with an active metal. 
E) always negative.

Question 5

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are __________.

Accepted Answer

A) CO2 and H2O 
B) CO2 and H2O2 
C) CO2 and H 
D) C(graphite)and H2 
E) CO2 and H2 
A) CO2 and H2O 
B) CO2 and H2O2 
C) CO2 and H 
D) C(graphite)and H2 
E) CO2 and H2

Question 6

The most stable allotrope of oxygen is __________.

Accepted Answer

A) H2O 
B) O3 
C) O2 
D) HClO 
E) O 
A) H2O 
B) O3 
C) O2 
D) HClO 
E) O

Question 7

Replacement of CaO by PbO in soda-lime glass results in

Accepted Answer

A) denser glass with a higher refractive index. 
B) glass with a deep blue color. 
C) opaque glass. 
D) a softer glass with a lower melting point. 
E) a harder glass with a higher melting point. 
A) denser glass with a higher refractive index. 
B) glass with a deep blue color. 
C) opaque glass. 
D) a softer glass with a lower melting point. 
E) a harder glass with a higher melting point.

Question 8

Which of the following statements is false?

Accepted Answer

A) Ozone is a better reducing agent than O2 (g). 
B) Ozone is produced by passing electricity through dry O2 (g). 
C) Ozone oxidizes all of the common metals except gold and platinum. 
D) Ozone decomposes to O2 and O. 
E) Ozone is an allotrope of oxygen. 
A) Ozone is a better reducing agent than O2 (g). 
B) Ozone is produced by passing electricity through dry O2 (g). 
C) Ozone oxidizes all of the common metals except gold and platinum. 
D) Ozone decomposes to O2 and O. 
E) Ozone is an allotrope of oxygen.

Question 9

Which of the following would produce the most strongly basic aqueous solution?

Accepted Answer

A) CO 
B) CO32- 
C) CO2 
D) HCO3- 
E) NaHCO3 
A) CO 
B) CO32- 
C) CO2 
D) HCO3- 
E) NaHCO3

Question 10

The reduction of O2by sodium hydride produces lye.

Accepted Answer

A) True 
 B)False

Question 11

The oxidation number of B in NaBH4 is __________.

Accepted Answer

A) +1 
B) +2 
C) +3 
D) +4 
E) +5 
A) +1 
B) +2 
C) +3 
D) +4 
E) +5

Question 12

Which compound would produce a basic aqueous solution?

Accepted Answer

A) MgH2 
B) H2S 
C) HCl 
D) HI 
E) CH3OH 
A) MgH2 
B) H2S 
C) HCl 
D) HI 
E) CH3OH

Question 13

Which pair of formula/name is incorrect?

Accepted Answer

A) NO / nitric oxide 
B) N2O / nitrous oxide 
C) NO2 / nitrogen dioxide 
D) N2O4 / dinitrogen trioxide 
E) N2O5 / dinitrogen pentoxide 
A) NO / nitric oxide 
B) N2O / nitrous oxide 
C) NO2 / nitrogen dioxide 
D) N2O4 / dinitrogen trioxide 
E) N2O5 / dinitrogen pentoxide

Question 14

Which form of elemental sulfur is the most stable at room temperature?

Accepted Answer

A) rhombic sulfur 
B) monoclinic 
C) hexagonal 
D) triclinic 
E) tetraclinic 
A) rhombic sulfur 
B) monoclinic 
C) hexagonal 
D) triclinic 
E) tetraclinic

Question 15

Of the following, which is most likely to form interstitial carbides?

Accepted Answer

A) active metals 
B) transition metals 
C) boron and silicon 
D) alkaline earth metals 
E) alkali metals 
A) active metals 
B) transition metals 
C) boron and silicon 
D) alkaline earth metals 
E) alkali metals

Question 16

Although CaCO3 is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of __________.

Accepted Answer

A) insoluble Ca(OH)2 
B) soluble Ca(OH)2 
C) insoluble Ca(HCO3)2 
D) soluble Ca(HCO3)2 
E) soluble CaO 
A) insoluble Ca(OH)2 
B) soluble Ca(OH)2 
C) insoluble Ca(HCO3)2 
D) soluble Ca(HCO3)2 
E) soluble CaO

Question 17

Oxides can react with water to form acids or bases.

Accepted Answer

A) True 
 B)False

Question 18

Which one of the following is false concerning pure hydrazine?

Accepted Answer

A) It is an oily, colorless liquid. 
B) It can be made by reaction of hypochlorite and ammonia. 
C) It is used as a rocket fuel. 
D) Hydrazine is quite poisonous. 
E) It is a clear, red liquid that is highly viscous. 
A) It is an oily, colorless liquid. 
B) It can be made by reaction of hypochlorite and ammonia. 
C) It is used as a rocket fuel. 
D) Hydrazine is quite poisonous. 
E) It is a clear, red liquid that is highly viscous.

Question 19

Astatine decays by __________.

Accepted Answer

The answer of Astatine decays by __________....

Question 20

The nitride ion is a strong Br∅nsted-Lowry base. Mg3N2 reacts with water to produce __________.

Accepted Answer

A) N2 
B) N2O 
C) NO 
D) NO2 
E) NH3 
A) N2 
B) N2O 
C) NO 
D) NO2 
E) NH3

Exam 22: Chemistry of the Nonmetals

In a hypohalous acid the oxidation state of the halogen is __________.

Which halogen is the most easily oxidized?

Low levels of arsenic consumption can lead to __________ or bladder cancer.

The oxidation state of fluorine in its compounds is

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O2 are __________.

The most stable allotrope of oxygen is __________.

Replacement of CaO by PbO in soda-lime glass results in

Which of the following statements is false?

Which of the following would produce the most strongly basic aqueous solution?

The reduction of O2by sodium hydride produces lye.

The oxidation number of B in NaBH4 is __________.

Which compound would produce a basic aqueous solution?

Which pair of formula/name is incorrect?

Which form of elemental sulfur is the most stable at room temperature?

Of the following, which is most likely to form interstitial carbides?

Although CaCO3 is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of __________.

Oxides can react with water to form acids or bases.

Which one of the following is false concerning pure hydrazine?

Astatine decays by __________.

The nitride ion is a strong Br∅nsted-Lowry base. Mg3N2 reacts with water to produce __________.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The principal combustion products of compounds containing carbon and hydrogen in the presence of excess O₂ are __________.

The reduction of O₂by sodium hydride produces lye.

The oxidation number of B in NaBH₄ is __________.

Although CaCO₃ is essentially insoluble in pure water, it dissolves slowly in acidic ground water due to formation of __________.

The nitride ion is a strong Br∅nsted-Lowry base. Mg₃N₂ reacts with water to produce __________.