Question 1

Which of the following has the smallest polarizability?

Accepted Answer

A) Ca2+ 
B) S2F1F1F1S1F1F1F10 
C) Cl 
D) S 
A) Ca2+ 
B) S2F1F1F1S1F1F1F10 
C) Cl 
D) S

Question 2

Write the equation for the production of sulfur by the Claus process,identify the reducing agent,and state the total number of electrons transferred in the reaction.

Accepted Answer

2H₂S(g)+ SO₂(g)F1F1F1S1F1F1F10

Question 3

The reaction of XeF4(s)with Pt(s)produces

Accepted Answer

A) Xe(g)and PtF6(s). 
B) XeF2(s)and PtF2(s). 
C) dimeric XeF2PtF4(s). 
D) Xe(g)and PtF4(s). 
E) XeF2(s)and PtF4(s). 
A) Xe(g)and PtF6(s). 
B) XeF2(s)and PtF2(s). 
C) dimeric XeF2PtF4(s). 
D) Xe(g)and PtF4(s). 
E) XeF2(s)and PtF4(s).

Question 4

When phosphoric acid and potassium bromide are mixed,a product is

Accepted Answer

A) HBrO(g). 
B) HBr(g). 
C) PBr2(g). 
D) Br2(g). 
E) P4(s). 
A) HBrO(g). 
B) HBr(g). 
C) PBr2(g). 
D) Br2(g). 
E) P4(s).

Question 5

Al2O3(s)dissolves in aqueous acid to produce

Accepted Answer

A) Al(OH2)63+(aq). 
B) Al(OH)4F1F1F1S1F1F1F10(aq)and O2(g). 
C) Al(OH)4F1F1F1S1F1F1F10(aq). 
D) Al(OH2)63+(aq)and H2(g). 
E) Al(OH)4F1F1F1S1F1F1F10(aq)and H2(g). 
A) Al(OH2)63+(aq). 
B) Al(OH)4F1F1F1S1F1F1F10(aq)and O2(g). 
C) Al(OH)4F1F1F1S1F1F1F10(aq). 
D) Al(OH2)63+(aq)and H2(g). 
E) Al(OH)4F1F1F1S1F1F1F10(aq)and H2(g).

Question 6

Sodium borohydride is an oxidizing agent.True or false?

Accepted Answer

A) True 
 B)False

Question 7

Diborane has

Accepted Answer

A) 2 bridging hydrogens and 4 terminal hydrogens. 
B) 1 BF3F1F1F1S1F1F1F10 anion and 1 BF3+ cation. 
C) 4 bridging hydrogens and 2 terminal hydrogens. 
D) 6 terminal hydrogens and 1 boron-boron bond. 
E) 1 bridging hydrogen, 4 terminal hydrogens, and an ionic hydrogen. 
A) 2 bridging hydrogens and 4 terminal hydrogens. 
B) 1 BF3F1F1F1S1F1F1F10 anion and 1 BF3+ cation. 
C) 4 bridging hydrogens and 2 terminal hydrogens. 
D) 6 terminal hydrogens and 1 boron-boron bond. 
E) 1 bridging hydrogen, 4 terminal hydrogens, and an ionic hydrogen.

Question 8

The alkali metals all react with water.Which is the most reactive metal?

Accepted Answer

A) Li 
B) Na 
C) Cs 
D) Rb 
E) K 
A) Li 
B) Na 
C) Cs 
D) Rb 
E) K

Question 9

In the following reaction 2KNO3(s)+ 4C(s)F1F1F1S1F1F1F10 K2CO3(s)+ 3CO(g)+ N2(g)
The reducing agent is

Accepted Answer

A) CO(g). 
B) KNO3(s). 
C) K2CO3(s). 
D) C(s). 
E) N2(g). 
A) CO(g). 
B) KNO3(s). 
C) K2CO3(s). 
D) C(s). 
E) N2(g).

Question 10

Which of the following is a covalent carbide?

Accepted Answer

A) W2C 
B) Fe3C 
C) SrC2  
D) CaC2  
E) SiC 
A) W2C 
B) Fe3C 
C) SrC2  
D) CaC2  
E) SiC

Question 11

Trends in electron affinity are similar to those for ionization energy.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is not true?

Accepted Answer

A) In diamond, each carbon atom is sp3-hybridized and linked to its four neighbors, with all electrons in C-C F1F1F1S1F1F1F10-bonds. 
B) C60 is molecular and thus soluble in solvents like benzene. 
C) Graphite consists of planar sheets of sp2-hybridized carbon atoms and electrons can move from one carbon to another through a delocalized F1F1F1S1F1F1F10-network formed by the overlap of unhybridized p-orbitals. 
D) Graphite is an electrically conducting solid. 
E) Diamond is an excellent conductor of heat. 
A) In diamond, each carbon atom is sp3-hybridized and linked to its four neighbors, with all electrons in C-C F1F1F1S1F1F1F10-bonds. 
B) C60 is molecular and thus soluble in solvents like benzene. 
C) Graphite consists of planar sheets of sp2-hybridized carbon atoms and electrons can move from one carbon to another through a delocalized F1F1F1S1F1F1F10-network formed by the overlap of unhybridized p-orbitals. 
D) Graphite is an electrically conducting solid. 
E) Diamond is an excellent conductor of heat.

Question 13

What reaction produces diborane?

Accepted Answer

A) BH3(g)and B(s). 
B) BF3(g)and NaBH4(s). 
C) B(s)and H2(g). 
D) B(s)and NH3(g). 
E) BCl3(g)and NaH(s). 
A) BH3(g)and B(s). 
B) BF3(g)and NaBH4(s). 
C) B(s)and H2(g). 
D) B(s)and NH3(g). 
E) BCl3(g)and NaH(s).

Question 14

Of the following compounds,which does not exist?

Accepted Answer

A) NCl5 
B) PCl3 
C) PCl5 
D) NCl3 
A) NCl5 
B) PCl3 
C) PCl5 
D) NCl3

Question 15

When hydrogen peroxide disproportionates it forms water and oxygen gas.True or false?

Accepted Answer

A) True 
 B)False

Question 16

In the thermite reaction,iron (III)oxide is the reducing agent.True or false?

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements is false?

Accepted Answer

A) Oxides of nonmetals are acidic. 
B) Elements with intermediate ionization energies form amphoteric oxides. 
C) Elements with low ionization energies commonly form ionic oxides. 
D) Oxides of main-group metals are acidic. 
A) Oxides of nonmetals are acidic. 
B) Elements with intermediate ionization energies form amphoteric oxides. 
C) Elements with low ionization energies commonly form ionic oxides. 
D) Oxides of main-group metals are acidic.

Question 18

Quicklime,CaO(s),reacts with C(s)to produce A plus carbon monoxide.When A is added to water,B and C are produced.Write the formulas of A,B,and C.

Accepted Answer

A) Ca(s), O2(g), and Ca(OH)2(aq) 
B) CaO(s)does not react with C(s). 
C) CaC2(s), H2(g), and Ca(OH)2(aq) 
D) Ca(s), H2(g), and Ca(OH)2(aq) 
E) CaC2(s), C2H2(g), and Ca(OH)2(aq) 
A) Ca(s), O2(g), and Ca(OH)2(aq) 
B) CaO(s)does not react with C(s). 
C) CaC2(s), H2(g), and Ca(OH)2(aq) 
D) Ca(s), H2(g), and Ca(OH)2(aq) 
E) CaC2(s), C2H2(g), and Ca(OH)2(aq)

Question 19

In ClF3,the number of regions of high electron concentration around the chlorine atom are

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 2 
A) 3 
B) 4 
C) 5 
D) 6 
E) 2

Question 20

All of the following form clathrates with water except

Accepted Answer

A) CH4 
B) SO2 
C) NO 
D) CO2 
E) Ne 
A) CH4 
B) SO2 
C) NO 
D) CO2 
E) Ne

Which of the following has the smallest polarizability?

Write the equation for the production of sulfur by the Claus process,identify the reducing agent,and state the total number of electrons transferred in the reaction.

The reaction of XeF₄(s)with Pt(s)produces

When phosphoric acid and potassium bromide are mixed,a product is

Al₂O₃(s)dissolves in aqueous acid to produce

Sodium borohydride is an oxidizing agent.True or false?

Diborane has

The alkali metals all react with water.Which is the most reactive metal?

In the following reaction 2KNO₃(s)+ 4C(s) K₂CO₃(s)+ 3CO(g)+ N₂(g) The reducing agent is

Which of the following is a covalent carbide?

Trends in electron affinity are similar to those for ionization energy.

Which of the following is not true?

What reaction produces diborane?

Of the following compounds,which does not exist?

When hydrogen peroxide disproportionates it forms water and oxygen gas.True or false?

In the thermite reaction,iron (III)oxide is the reducing agent.True or false?

Which of the following statements is false?

Quicklime,CaO(s),reacts with C(s)to produce A plus carbon monoxide.When A is added to water,B and C are produced.Write the formulas of A,B,and C.

In ClF₃,the number of regions of high electron concentration around the chlorine atom are

All of the following form clathrates with water except

The Quantum World

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Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

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Inorganic Materials

Thermodynamics: the First Law

Thermodynamics: the Second and Third Laws

Physical Equilibria

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Aqueous Equilibria

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Exam 16: The Elements: the Main Group Elements

Which of the following has the smallest polarizability?

Write the equation for the production of sulfur by the Claus process,identify the reducing agent,and state the total number of electrons transferred in the reaction.

The reaction of XeF4(s)with Pt(s)produces

When phosphoric acid and potassium bromide are mixed,a product is

Al2O3(s)dissolves in aqueous acid to produce

Sodium borohydride is an oxidizing agent.True or false?

Diborane has

The alkali metals all react with water.Which is the most reactive metal?

In the following reaction 2KNO3(s)+ 4C(s) K2CO3(s)+ 3CO(g)+ N2(g) The reducing agent is

Which of the following is a covalent carbide?

Trends in electron affinity are similar to those for ionization energy.

Which of the following is not true?

What reaction produces diborane?

Of the following compounds,which does not exist?

When hydrogen peroxide disproportionates it forms water and oxygen gas.True or false?

In the thermite reaction,iron (III)oxide is the reducing agent.True or false?

Which of the following statements is false?

Quicklime,CaO(s),reacts with C(s)to produce A plus carbon monoxide.When A is added to water,B and C are produced.Write the formulas of A,B,and C.

In ClF3,the number of regions of high electron concentration around the chlorine atom are

All of the following form clathrates with water except

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

The reaction of XeF₄(s)with Pt(s)produces

Al₂O₃(s)dissolves in aqueous acid to produce

In the following reaction 2KNO₃(s)+ 4C(s) K₂CO₃(s)+ 3CO(g)+ N₂(g) The reducing agent is

In ClF₃,the number of regions of high electron concentration around the chlorine atom are