Question 1

What is the shape of ClF2+?

Accepted Answer

A) Bent (~120o) 
B) Trigonal bipyramidal 
C) Ttetrahedral 
D) Linear 
E) Bent (~109o) 
A) Bent (~120o) 
B) Trigonal bipyramidal 
C) Ttetrahedral 
D) Linear 
E) Bent (~109o)

Question 2

Ammonia is both a weak Brønsted base in water and a strong Lewis base.True or false?

Accepted Answer

A) True 
 B)False

Question 3

The oxoacids of Group 17 have the general formula HXOn,where X is a halogen and n can take on values from 1 through 4.Which of the following is true?

Accepted Answer

A) As the oxidation number of X increases, the strength of the acid decreases. 
B) As the oxidation number of X increases, the oxidizing strength of the acid increases. 
C) Only the oxoacids with oxidation number +1 are strong acids. 
D) The oxoacids with oxidation number +1 are reducing agents. 
E) The oxoacids with oxidation number +7 are weak oxidizing agents. 
A) As the oxidation number of X increases, the strength of the acid decreases. 
B) As the oxidation number of X increases, the oxidizing strength of the acid increases. 
C) Only the oxoacids with oxidation number +1 are strong acids. 
D) The oxoacids with oxidation number +1 are reducing agents. 
E) The oxoacids with oxidation number +7 are weak oxidizing agents.

Question 4

Which of the following molecules requires the most energy to split into gaseous atoms?

Accepted Answer

A) CO 
B) F2  
C) O2  
D) N2  
E) Cl2  
A) CO 
B) F2  
C) O2  
D) N2  
E) Cl2

Question 5

Which of the following concentrated acids can be safely transported in passivated lead containers?

Accepted Answer

A) HClO4  
B) H2SO4  
C) HI 
D) HCl 
E) HNO3  
A) HClO4  
B) H2SO4  
C) HI 
D) HCl 
E) HNO3

Question 6

Phosphorous and phosphoric acids have

Accepted Answer

A) 1 and 0 hydrogens bonded to the phosphorus atom, respectively. 
B) 1 hydrogen bonded to the phosphorus atom. 
C) 3 hydrogens bonded to oxygen atoms. 
D) 2 and 0 hydrogens bonded to the phosphorus atom. 
E) 2 hydrogens bonded to the phosphorus atom. 
A) 1 and 0 hydrogens bonded to the phosphorus atom, respectively. 
B) 1 hydrogen bonded to the phosphorus atom. 
C) 3 hydrogens bonded to oxygen atoms. 
D) 2 and 0 hydrogens bonded to the phosphorus atom. 
E) 2 hydrogens bonded to the phosphorus atom.

Question 7

Sulfur does not react directly with

Accepted Answer

A) chlorine. 
B) chlorine and bromine. 
C) fluorine. 
D) fluorine and chlorine. 
E) iodine. 
A) chlorine. 
B) chlorine and bromine. 
C) fluorine. 
D) fluorine and chlorine. 
E) iodine.

Question 8

Of the following,which compound(s)exist?

Accepted Answer

A) NCl3 
B) PCl5 
C) PCl3 
D) NCl5 
E) A through C exist. 
A) NCl3 
B) PCl5 
C) PCl3 
D) NCl5 
E) A through C exist.

Question 9

Which of the following compounds is predicted to have bonds with the most covalent character?

Accepted Answer

A) MgF2  
B) LiF 
C) CsI 
D) MgI2  
E) BaBr2  
A) MgF2  
B) LiF 
C) CsI 
D) MgI2  
E) BaBr2

Question 10

The lattice enthalpies of ionic compounds of fluoride tend to be very high because

Accepted Answer

A) fluorine has a high electronegativity. 
B) fluoride ion has an oxidation state of F1F1F1S1F1F1F101. 
C) fluorine gas is very reactive. 
D) the fluoride ion is small. 
E) fluorine is a strong oxidant. 
A) fluorine has a high electronegativity. 
B) fluoride ion has an oxidation state of F1F1F1S1F1F1F101. 
C) fluorine gas is very reactive. 
D) the fluoride ion is small. 
E) fluorine is a strong oxidant.

Question 11

Which of the following noble gases is least likely to react with fluorine?

Accepted Answer

A) Ar 
B) Rn 
C) Xe 
D) Kr 
E) Ne 
A) Ar 
B) Rn 
C) Xe 
D) Kr 
E) Ne

Question 12

(a)The phase diagram of helium has ____ triple points.
(b)The ionization energy of both oxygen and xenon is about 1200 kJF1F1F1S1F1F1F10molF1F1F1S1F1F1F101.What does this observation suggest?
(c)The first noble gas compound actually contained the XeF+ ion.Write the Lewis structure of this ion and predict whether it should be stable.

Accepted Answer

(a)2 (b)If O₂ can be oxidized i

Question 13

When sulfuric acid and calcium fluoride are mixed,a product is

Accepted Answer

A) F2(g). 
B) SO2(g). 
C) HF(g). 
D) H2S(g). 
E) SF2(g). 
A) F2(g). 
B) SO2(g). 
C) HF(g). 
D) H2S(g). 
E) SF2(g).

Question 14

Aluminum metal is produced by

Accepted Answer

A) reduction of Al2O3 with carbon. 
B) electrolysis of a molten mixture of alumina, Al2O3, and cryolite, Na3AlF6. 
C) treatment of Al2O3 with sodium hydroxide. 
D) the thermite reaction. 
E) electrolysis of brine containing Al2(SO4)3. 
A) reduction of Al2O3 with carbon. 
B) electrolysis of a molten mixture of alumina, Al2O3, and cryolite, Na3AlF6. 
C) treatment of Al2O3 with sodium hydroxide. 
D) the thermite reaction. 
E) electrolysis of brine containing Al2(SO4)3.

Question 15

The products of the disproportionation of chlorine in water are

Accepted Answer

A) HClO and O2 
B) HClO and HCl 
C) ClO2 and H2 
D) OHF1F1F1S1F1F1F10 and HCl 
A) HClO and O2 
B) HClO and HCl 
C) ClO2 and H2 
D) OHF1F1F1S1F1F1F10 and HCl

Question 16

Which of the following metals,Ag,Zn,Cu,Ni,Au,Pt,Sn,cannot be extracted by hydrometallurgical reduction of their ions with hydrogen?

Accepted Answer

A) Au, Pt 
B) Ag, Au, Pt 
C) Zn, Ni, Au 
D) Zn, Ni, Sn 
E) Ag, Cu, Au, Pt 
A) Au, Pt 
B) Ag, Au, Pt 
C) Zn, Ni, Au 
D) Zn, Ni, Sn 
E) Ag, Cu, Au, Pt

Question 17

Which of the following reactions does not occur?

Accepted Answer

A) 2BrF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 Br2(l)+ 2ClF1F1F1S1F1F1F10(aq) 
B) 2IF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 I2(aq)+ 2ClF1F1F1S1F1F1F10(aq) 
C) Cl2(g)+ H2O(aq)F1F1F1S1F1F1F10 HClO(aq)+ HCl(aq) 
D) KI(s)+ H3PO4(aq)F1F1F1S1F1F1F10 KH2PO4(AQ)+ hi(G) 
E) 2FF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 F2(g)+ 2ClF1F1F1S1F1F1F10(aq) 
A) 2BrF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 Br2(l)+ 2ClF1F1F1S1F1F1F10(aq) 
B) 2IF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 I2(aq)+ 2ClF1F1F1S1F1F1F10(aq) 
C) Cl2(g)+ H2O(aq)F1F1F1S1F1F1F10 HClO(aq)+ HCl(aq) 
D) KI(s)+ H3PO4(aq)F1F1F1S1F1F1F10 KH2PO4(AQ)+ hi(G) 
E) 2FF1F1F1S1F1F1F10(aq)+ Cl2(g)F1F1F1S1F1F1F10 F2(g)+ 2ClF1F1F1S1F1F1F10(aq)

Question 18

Which of the following is a basic oxide?

Accepted Answer

A) CaO(s) 
B) CO2(g) 
C) SO2(g) 
D) CO(g) 
E) SiO2(s) 
A) CaO(s) 
B) CO2(g) 
C) SO2(g) 
D) CO(g) 
E) SiO2(s)

Question 19

Which of the following is unstable?

Accepted Answer

A) HFO 
B) HBrO 
C) HClO 
D) HI 
E) HF 
A) HFO 
B) HBrO 
C) HClO 
D) HI 
E) HF

Question 20

Which of the following are all allotropes?

Accepted Answer

A) Graphite, diamond, and C60  
B) Silicon, carbon, and C60  
C) Boron carbide and carbon 
D) Carbon monoxide and carbon dioxide 
E) Silicon carbide, diamond, and C60  
A) Graphite, diamond, and C60  
B) Silicon, carbon, and C60  
C) Boron carbide and carbon 
D) Carbon monoxide and carbon dioxide 
E) Silicon carbide, diamond, and C60

What is the shape of ClF₂⁺?

Ammonia is both a weak Brønsted base in water and a strong Lewis base.True or false?

The oxoacids of Group 17 have the general formula HXO_n,where X is a halogen and n can take on values from 1 through 4.Which of the following is true?

Which of the following molecules requires the most energy to split into gaseous atoms?

Which of the following concentrated acids can be safely transported in passivated lead containers?

Phosphorous and phosphoric acids have

Sulfur does not react directly with

Of the following,which compound(s)exist?

Which of the following compounds is predicted to have bonds with the most covalent character?

The lattice enthalpies of ionic compounds of fluoride tend to be very high because

Which of the following noble gases is least likely to react with fluorine?

When sulfuric acid and calcium fluoride are mixed,a product is

Aluminum metal is produced by

The products of the disproportionation of chlorine in water are

Which of the following metals,Ag,Zn,Cu,Ni,Au,Pt,Sn,cannot be extracted by hydrometallurgical reduction of their ions with hydrogen?

Which of the following reactions does not occur?

Which of the following is a basic oxide?

Which of the following is unstable?

Which of the following are all allotropes?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: the First Law

Thermodynamics: the Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

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Exam 16: The Elements: the Main Group Elements

What is the shape of ClF2+?

Ammonia is both a weak Brønsted base in water and a strong Lewis base.True or false?

The oxoacids of Group 17 have the general formula HXOn,where X is a halogen and n can take on values from 1 through 4.Which of the following is true?

Which of the following molecules requires the most energy to split into gaseous atoms?

Which of the following concentrated acids can be safely transported in passivated lead containers?

Phosphorous and phosphoric acids have

Sulfur does not react directly with

Of the following,which compound(s)exist?

Which of the following compounds is predicted to have bonds with the most covalent character?

The lattice enthalpies of ionic compounds of fluoride tend to be very high because

Which of the following noble gases is least likely to react with fluorine?

When sulfuric acid and calcium fluoride are mixed,a product is

Aluminum metal is produced by

The products of the disproportionation of chlorine in water are

Which of the following metals,Ag,Zn,Cu,Ni,Au,Pt,Sn,cannot be extracted by hydrometallurgical reduction of their ions with hydrogen?

Which of the following reactions does not occur?

Which of the following is a basic oxide?

Which of the following is unstable?

Which of the following are all allotropes?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: the First Law

Thermodynamics: the Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

What is the shape of ClF₂⁺?

The oxoacids of Group 17 have the general formula HXO_n,where X is a halogen and n can take on values from 1 through 4.Which of the following is true?