Question 1

When sulfur is produced by the Claus process, the starting material is

Accepted Answer

A)  H2SO4(l). 
B)  Na2SO3(s). 
C)  SO3(g). 
D)  SO2(g). 
E)  H2S(g). 
A)  H2SO4(l). 
B)  Na2SO3(s). 
C)  SO3(g). 
D)  SO2(g). 
E)  H2S(g).

Question 2

The term catenation refers to

Accepted Answer

A)  the ability of sulfur to bond four oxygen atoms. 
B)  the ability of sulfur to form chains of atoms. 
C)  the fact that sulfur can exist as monatomic S(g). 
D)  the fact that ozone is an allotrope of oxygen. 
E)  the synthesis of sulfuric acid. 
A)  the ability of sulfur to bond four oxygen atoms. 
B)  the ability of sulfur to form chains of atoms. 
C)  the fact that sulfur can exist as monatomic S(g). 
D)  the fact that ozone is an allotrope of oxygen. 
E)  the synthesis of sulfuric acid.

Question 3

The sublimation of "dry ice" is spontaneous at 25$\omicron$C and 1 atm .What are the signs of $\Delta$H$\omicron$ and $\Delta$S$\omicron$,Respectively?

Accepted Answer

A)  0, + 
B)  +, - 
C)  -, + 
D)  +, + 
E)  -,- 
A)  0, + 
B)  +, - 
C)  -, + 
D)  +, + 
E)  -,-

Question 4

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 5

How do the saline hydrides react in water?

Accepted Answer

A)  They reduce water and produce O2(g). 
B)  They all produce H3O+(aq). 
C)  They oxidize water and produce O2(g). 
D)  Saline hydrides are actually insoluble in water. 
E)  They reduce water and produce H2(g). 
A)  They reduce water and produce O2(g). 
B)  They all produce H3O+(aq). 
C)  They oxidize water and produce O2(g). 
D)  Saline hydrides are actually insoluble in water. 
E)  They reduce water and produce H2(g).

Question 6

Which of the following are good reducing agents?
HNO3,PH3,HNO2,NCl3,NH3,NO

Accepted Answer

A)  HNO3 and NO 
B)  HNO2 and HNO3 
C)  NCl3 and NH3 
D)  NH3 and PH3 
E)  NH3 only 
A)  HNO3 and NO 
B)  HNO2 and HNO3 
C)  NCl3 and NH3 
D)  NH3 and PH3 
E)  NH3 only

Question 7

Both H2O and H2S can participate in hydrogen bonding.

Accepted Answer

A) True 
 B)False

Question 8

When hydrogen peroxide reacts with chlorine, the O2 formed may be produced in anexcited state and emit light.This process is called

Accepted Answer

A)  chemiluminescence. 
B)  bioluminescence. 
C)  phosphorescence. 
D)  triboluminescence. 
E)  incandescence. 
A)  chemiluminescence. 
B)  bioluminescence. 
C)  phosphorescence. 
D)  triboluminescence. 
E)  incandescence.

Question 9

Lithium and magnesium have similar properties and their compounds have covalent character.

Accepted Answer

A) True 
 B)False

Question 10

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Accepted Answer

A)  Li+ has strong polarizing power. 
B)  Lithium-ion is a good reducing agent. 
C)  Lithium has a high density. 
D)  Lithium has the most negative standard potential of all the elements. 
E)  Li+ has a small radius. 
A)  Li+ has strong polarizing power. 
B)  Lithium-ion is a good reducing agent. 
C)  Lithium has a high density. 
D)  Lithium has the most negative standard potential of all the elements. 
E)  Li+ has a small radius.

Question 11

Which of the following reactions does not occur?

Accepted Answer

A)  2Br-(aq) + Cl2(g) $\rarr$  Br2(l) + 2Cl-(aq) 
B)  2I-(aq) + Cl2(g) $\rarr$  I2(aq) + 2Cl-(aq) 
C)  Cl2(g) + H2O(aq) $\rarr$  HClO(aq) + HCl(aq) 
D)  KI(s) + H3PO4(aq) $\rarr$ KH2PO4(AQ) + hi(G) 
E)  2F-(aq) + Cl2(g) $\rarr$ F2(g) + 2Cl-(aq) 
A)  2Br-(aq) + Cl2(g) $\rarr$  Br2(l) + 2Cl-(aq) 
B)  2I-(aq) + Cl2(g) $\rarr$  I2(aq) + 2Cl-(aq) 
C)  Cl2(g) + H2O(aq) $\rarr$  HClO(aq) + HCl(aq) 
D)  KI(s) + H3PO4(aq) $\rarr$ KH2PO4(AQ) + hi(G) 
E)  2F-(aq) + Cl2(g) $\rarr$ F2(g) + 2Cl-(aq)

Question 12

Both the hydride ion and sodium metal reduce water.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is paramagnetic?

Accepted Answer

A)  N2  
B)  N2O 
C)  O22-  
D)  O3  
E)  NO 
A)  N2  
B)  N2O 
C)  O22-  
D)  O3  
E)  NO

Question 14

The most stable form of phosphorus at 25S1U1P1$\circ$S1S1P0C and 1 atm is

Accepted Answer

A)  P(s, red). 
B)  P4O10(s). 
C)  P2O3(s). 
D)  P4(g). 
E)  P(s, white). 
A)  P(s, red). 
B)  P4O10(s). 
C)  P2O3(s). 
D)  P4(g). 
E)  P(s, white).

Question 15

The reaction of potassium superoxide with water vapor produces

Accepted Answer

A)  K2O(s). 
B)  H2O2(l). 
C)  KHCO3(s). 
D)  O2(g). 
E)  H2(g). 
A)  K2O(s). 
B)  H2O2(l). 
C)  KHCO3(s). 
D)  O2(g). 
E)  H2(g).

Question 16

All the following statements about are characteristic of fluorine or its compounds are true except

Accepted Answer

A)  Fluorine has a high electronegativity. 
B)  Fluorine brings about low oxidation numbers in other elements. 
C)  Fluorine has a very small size. 
D)  Fluorine does not have available d-orbitals for bonding. 
E)  Fluorine has an oxidation number of -1. 
A)  Fluorine has a high electronegativity. 
B)  Fluorine brings about low oxidation numbers in other elements. 
C)  Fluorine has a very small size. 
D)  Fluorine does not have available d-orbitals for bonding. 
E)  Fluorine has an oxidation number of -1.

Question 17

Complete and balance
XeF4(s)+ H2O(l)$\rightarrow$

Accepted Answer

6XeF₄(s)+ 1

Question 18

Which of the following has the smallest polarizability?

Accepted Answer

A)  CaS1U1P12+S1S1P0 
B)  SS1U1P12-S1S1P0 
C)  Cl 
D)  S 
A)  CaS1U1P12+S1S1P0 
B)  SS1U1P12-S1S1P0 
C)  Cl 
D)  S

Question 19

Autoprotolysis occurs to a much smaller extent in ammonia (Km = 1 *  10S1U1P1-33 S1S1P0at -35$\omicron$C) than in water.This means that

Accepted Answer

A)  very strong bases that would be protonated in water survive in their anionic form in ammonia. 
B)  [NH4+(am)] $\neq$[NH2S1U1P1-S1S1P0(am)]. 
C)  strongly ionic compounds are very soluble in ammonia. 
D)  ammonia is not very soluble in water. 
E)  ammonia is not a very good solvent for a wide range of compounds. 
A)  very strong bases that would be protonated in water survive in their anionic form in ammonia. 
B)  [NH4+(am)] $\neq$[NH2S1U1P1-S1S1P0(am)]. 
C)  strongly ionic compounds are very soluble in ammonia. 
D)  ammonia is not very soluble in water. 
E)  ammonia is not a very good solvent for a wide range of compounds.

Question 20

When metallic hydrides are heated, they

Accepted Answer

A)  decompose explosively to yield metal oxides. 
B)  liberate oxygen and hydrogen. 
C)  liberate hydrogen. 
D)  produce hydrogen ions. 
E)  do not change because they are extremely stable. 
A)  decompose explosively to yield metal oxides. 
B)  liberate oxygen and hydrogen. 
C)  liberate hydrogen. 
D)  produce hydrogen ions. 
E)  do not change because they are extremely stable.

When sulfur is produced by the Claus process, the starting material is

The term catenation refers to

The sublimation of "dry ice" is spontaneous at 25^$\omicron$C and 1 atm .What are the signs of $\Delta$ H^$\omicron$ and $\Delta$ S^$\omicron$,Respectively?

Which of the following is unstable?

How do the saline hydrides react in water?

Which of the following are good reducing agents? HNO₃,PH₃,HNO₂,NCl₃,NH₃,NO

Both H₂O and H₂S can participate in hydrogen bonding.

When hydrogen peroxide reacts with chlorine, the O₂ formed may be produced in anexcited state and emit light.This process is called

Lithium and magnesium have similar properties and their compounds have covalent character.

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Which of the following reactions does not occur?

Both the hydride ion and sodium metal reduce water.

Which of the following is paramagnetic?

The most stable form of phosphorus at 25^$\circ$C and 1 atm is

The reaction of potassium superoxide with water vapor produces

All the following statements about are characteristic of fluorine or its compounds are true except

Complete and balance XeF₄(s)+ H₂O(l) $\rightarrow$

Which of the following has the smallest polarizability?

Autoprotolysis occurs to a much smaller extent in ammonia (K_m = 1 * 10^-33at -35^$\omicron$C) than in water.This means that

When metallic hydrides are heated, they

Atoms

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

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Exam 8: The Main-Group Elements

When sulfur is produced by the Claus process, the starting material is

The term catenation refers to

The sublimation of "dry ice" is spontaneous at 25 ο\omicronο C and 1 atm .What are the signs of Δ\DeltaΔ H ο\omicronο and Δ\DeltaΔ S ο\omicronο ,Respectively?

Which of the following is unstable?

How do the saline hydrides react in water?

Which of the following are good reducing agents? HNO3,PH3,HNO2,NCl3,NH3,NO

Both H2O and H2S can participate in hydrogen bonding.

When hydrogen peroxide reacts with chlorine, the O2 formed may be produced in anexcited state and emit light.This process is called

Lithium and magnesium have similar properties and their compounds have covalent character.

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Which of the following reactions does not occur?

Both the hydride ion and sodium metal reduce water.

Which of the following is paramagnetic?

The most stable form of phosphorus at 25 ∘\circ∘ C and 1 atm is

The reaction of potassium superoxide with water vapor produces

All the following statements about are characteristic of fluorine or its compounds are true except

Complete and balance XeF4(s)+ H2O(l) →\rightarrow→

Which of the following has the smallest polarizability?

Autoprotolysis occurs to a much smaller extent in ammonia (Km = 1 * 10-33 at -35 ο\omicronο C) than in water.This means that

When metallic hydrides are heated, they

Atoms

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

Filters

The sublimation of "dry ice" is spontaneous at 25^$\omicron$C and 1 atm .What are the signs of $\Delta$ H^$\omicron$ and $\Delta$ S^$\omicron$,Respectively?

Which of the following are good reducing agents? HNO₃,PH₃,HNO₂,NCl₃,NH₃,NO

Both H₂O and H₂S can participate in hydrogen bonding.

When hydrogen peroxide reacts with chlorine, the O₂ formed may be produced in anexcited state and emit light.This process is called

The most stable form of phosphorus at 25^$\circ$C and 1 atm is

Complete and balance XeF₄(s)+ H₂O(l) $\rightarrow$

Autoprotolysis occurs to a much smaller extent in ammonia (K_m = 1 * 10^-33at -35^$\omicron$C) than in water.This means that