Question 1

P4O6 and P4O10 are allotropes of phosphorus.

Accepted Answer

A) True 
 B)False

Question 2

Chlorine gas is prepared commercially by

Accepted Answer

A)   electrolysis of carbon tetrachloride.
B)   oxidation of chloride ion with F2(g) .
C)   electrolysis of NaCl(aq) .
D)   oxidation of chloride ion with Br2(aq) .
E)   electrolysis of AlCl3(aq) .F) A) and E)
G) C) and E)

Question 3

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H2O(g) $\rarr$ CO(g) + H2(g)

Accepted Answer

A) True 
 B)False

Question 4

Phosphoric acid is the most important of the phosphorus oxoacids. Industrially, phosphoric acid is prepared by

Accepted Answer

A)   the Ostwald process.
B)   the Haber process.
C)   the reaction of phosphate rock with sulfuric acid.
D)   the reaction of P4O10 with water.
E)   the Frasch process.F) A) and B)
G) B) and C)

Question 5

Which one of the following compounds can react with water to form hydrogen gas

Accepted Answer

A)   PCl5
B)   NO2
C)   H2O2
D)   KH
E)   NH3F) A) and B)
G) A) and E)

Question 6

Which of the following choices is/are covalent oxides
I. SrO 
II. SiO2 
III. SO2

Accepted Answer

A)   I only
B)   II only
C)   III only
D)   I and II
E)   II and IIIF) A) and B)
G) C) and D)

Question 7

Which one of the following compounds can react with water to form oxygen gas

Accepted Answer

A)   PCl5
B)   NO2
C)   H2O2
D)   KH
E)   NH3F) A) and D)
G) B) and C)

Question 8

Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation:
SiO2(s) + 3C(s) $\rarr$ SiC(s) + 2CO(g)

Accepted Answer

A) True 
 B)False

Question 9

A chemical formula of the carbide ion is

Accepted Answer

A)   Si4-
B)   C2-
C)   C22-
D)   CN-
E)   C3-F) B) and E)
G) D) and E)

Question 10

Write the chemical formula of the peroxide ion.

Accepted Answer

A)   O2-
B)   O-
C)   O2-
D)   O22-
E)   None of the aboveF) A) and E)
G) A) and D)

Question 11

Which of these industrial chemicals is produced in the greatest amount annually

Accepted Answer

A)   HNO3
B)   H3PO4
C)   H2
D)   H2SO4
E)   HClO3F) D) and E)
G) B) and D)

Question 12

Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

Accepted Answer

A)   NaH
B)   B2H6
C)   H2SO4
D)   H2S
E)   PH3F) B) and E)
G) All of the above

Question 13

Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam.2 C3H8(g) + 3H2O(g) $\rarr$ 6CO(g) + 7H2(g)

Accepted Answer

A) True 
 B)False

Question 14

Choose the formula that does not represent a stable allotrope.

Accepted Answer

A)   N2
B)   S8
C)   O2
D)   P2
E)   I2F) B) and C)
G) B) and E)

Question 15

Write the formula for the binary hydride you would expect calcium to form.

Accepted Answer

A)   CaH
B)   Ca2H
C)   Ca3H2
D)   CaH2
E)   None of the aboveF) A) and B)
G) C) and D)

Question 16

The Ostwald process is the main method for the manufacture of nitric acid. In the first step of this process

Accepted Answer

A)   nitrogen and hydrogen react to form NH3.
B)   ammonia is burned in O2 to generate N2 and H2O.
C)   nitrogen and oxygen react to form NO2.
D)   nitrogen and oxygen react to form NO.
E)   ammonia is burned with O2 to generate NO and H2O.F) A) and E)
G) B) and E)

Question 17

The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine

Accepted Answer

A)   first ionization energy
B)   electron affinity
C)   electronegativity
D)   diatomic bond length
E)   ionic radiusF) C) and D)
G) A) and E)

Question 18

Which of the following substances is a peroxide

Accepted Answer

A)   KO2
B)   Na2O2
C)   CO2
D)   CaO
E)   Al2O3F) A) and B)
G) B) and C)

Question 19

Write the chemical formula of the oxide ion.

Accepted Answer

A)   O2-
B)   O-
C)   O2-
D)   O22-
E)   None of the aboveF) B) and C)
G) A) and B)

Question 20

Based on the following options, select the substance with hydrogen in the +1 oxidation state.

Accepted Answer

A)   KH
B)   CH4
C)   H2
D)   AlH3
E)   SrH2F) B) and C)
G) A) and D)

Exam 22: Nonmetallic Elements and Their Compounds

Phosphoric acid is the most important of the phosphorus oxoacids. Industrially, phosphoric acid is prepared by

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Which of the following choices is/are covalent oxides I. SrO II. SiO2 III. SO2

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Based on the following options, select the substance with hydrogen in the +1 oxidation state.

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Write the formula for the binary hydride you would expect calcium to form.

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Write the chemical formula of the oxide ion.

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Write the chemical formula of the peroxide ion.

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Which of the following substances is a peroxide

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Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation: SiO2(s) + 3C(s) →\rarr→ SiC(s) + 2CO(g)

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Chlorine gas is prepared commercially by

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Which of these industrial chemicals is produced in the greatest amount annually

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P4O6 and P4O10 are allotropes of phosphorus.

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Which one of the following compounds can react with water to form hydrogen gas

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Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

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Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam.2 C3H8(g) + 3H2O(g) →\rarr→ 6CO(g) + 7H2(g)

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Which one of the following compounds can react with water to form oxygen gas

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Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H2O(g) →\rarr→ CO(g) + H2(g)

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Choose the formula that does not represent a stable allotrope.

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The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine

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The Ostwald process is the main method for the manufacture of nitric acid. In the first step of this process

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A chemical formula of the carbide ion is

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Which of the following choices is/are covalent oxides I. SrO II. SiO₂ III. SO₂

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Carborundum, silicon carbide, SiC(s), can be prepared by reacting silicon dioxide with carbon as shown in the following balanced chemical equation: SiO₂(s) + 3C(s) $\rarr$ SiC(s) + 2CO(g)

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P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

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Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the reaction of propane (C₃H₈, obtained from natural gas) and steam.2 C₃H₈(g) + 3H₂O(g) $\rarr$ 6CO(g) + 7H₂(g)

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Hydrogen plays an important role in many industrial processes. The following correctly represents a balanced chemical equation for its production by the water gas reaction.C(s) + H₂O(g) $\rarr$ CO(g) + H₂(g)

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The bond energy of F₂ is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom. Which of the following periodic properties is also unusually low in the case of fluorine

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