Question 1

Which best represents the allotrope(s) of oxygen?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) D) and E)
G) C) and D)

Question 2

Which of the following is not a product of the reaction of zinc metal with nitric acid?

Accepted Answer

A)  NH4+
B)  H2O
C)  H2
D)  Zn2+
E)  All of the species are products.F) A) and E)
G) B) and D)

Question 3

What are the products of the reaction of strontium hydride and water? SrH2(s) + H2O(l) →

Accepted Answer

A)  Sr2+(aq) + H2(g) + O2(g) 
B)  Sr2+(aq) + H2(g) + OH-(aq) 
C)  Sr(s) + H2(g) + OH-(aq) 
D)  Sr(s) + H3O+(aq) 
E)  Sr2+(aq) + H-(aq) F) B) and E)
G) A) and B)

Question 4

Which,if any,of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Accepted Answer

A)  XY
B)  XY2
C)  XY3
D)  XY5
E)  All may represent stable interhalogen compounds.F) C) and D)
G) A) and B)

Question 5

Which of these compounds does not follow the octet rule?

Accepted Answer

A)  CO
B)  CO2
C)  NF3
D)  NO
E)  CF4F) C) and D)
G) B) and C)

Question 6

Which of the following is a commercial application of phosphate compounds?

Accepted Answer

A)  Detergents
B)  Toothpaste
C)  Fertilizers
D)  Flame retardants
E)  All of the answers are correct.F) All of the above
G) A) and C)

Question 7

__________________ is the addition of molecular hydrogen to compounds containing multiple bonds (double or triple).

Accepted Answer

The answer of __________________ is the addition of molecular hydrogen...

Question 8

Arsenic,As,is

Accepted Answer

A)  an essential element in the human body.
B)  toxic because it results in an increase in the production of ATP.
C)  toxic because it binds to the sulfhydryl group in proteins and enzymes.
D)  used in high concentrations in ancient cosmetics.
E)  None of these choices is correct.F) C) and E)
G) A) and B)

Question 9

How many lone electron pairs are in the N2 molecule?

Accepted Answer

A)  1
B)  4
C)  3
D)  5
E)  2F) A) and E)
G) B) and D)

Question 10

In their elemental forms,the halogens are

Accepted Answer

A)  strong oxidizing agents.
B)  strong reducing agents.
C)  strong acids.
D)  strong bases.
E)  amphoteric.F) None of the above
G) A) and B)

Question 11

What has metal and nonmetal characteristics?

Accepted Answer

The answer of What has metal and nonmetal characteristics?...

Question 12

Nonmetals are more electropositive than metals.

Accepted Answer

A) True 
 B)False

Question 13

What are the products of the reaction of potassium hydride and water? KH(s) + H2O(l) →

Accepted Answer

A)  K(s) + H2(g) + OH-(aq) 
B)  K(s) + H2(g) + O2(g) 
C)  KOH(s) + O2(g) 
D)  K+(aq) + H2(g) + O2(g) 
E)  K+(aq) + H2(g) + OH-(aq) F) D) and E)
G) C) and D)

Question 14

Which one of these species exists as a diatomic element at room temperature?

Accepted Answer

A)  Na
B)  N
C)  B
D)  Ar
E)  PF) A) and E)
G) A) and C)

Question 15

Below is a representation of a sample of gas with molecules having the formula XO2.Which element could NOT be represented by X? 2.Which element could NOT be represented by X?   A) N B) S C) C D) O E) Cl" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  N
B)  S
C)  C
D)  O
E)  ClF) C) and D)
G) A) and B)

Question 16

The chemical that ranks first in production among all industrial chemicals is

Accepted Answer

A)  NH3,ammonia.
B)  H3PO4,phosphoric acid.
C)  NaOH,sodium hydroxide.
D)  Na2CO3,sodium carbonate.
E)  H2SO4,sulfuric acid.F) A) and D)
G) A) and E)

Question 17

Consider the oxides XO2,where X is a main group element.Identify X in each of the following cases:
a.XO2 is a natural component of the atmosphere,implicated in global warming.
b.XO2 is a toxic,brown gas and a component of photochemical smog.
c.XO2 is a colorless,toxic gas,implicated in acid rain.

Accepted Answer

Question 18

Which of these has a nonpolar covalent bond (i.e.,pure covalent) ?

Accepted Answer

A)  Se-I
B)  Na-Br
C)  H-F
D)  Cl-Cl
E)  H-ClF) A) and E)
G) A) and D)

Question 19

Which oxide is an amphoteric oxide?

Accepted Answer

A)  Na2O
B)  Al2O3
C)  BaO
D)  SiO2
E)  More that one of these oxides are amphoteric.F) D) and E)
G) A) and D)

Question 20

Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements.Which of the following statements is correct?

Accepted Answer

A)  These substances have distinct stoichiometric formulas like ionic hydrides.
B)  Hydrogen forms bonds with the metals by donating its electron to the valence band of the metal.
C)  Hydrogen molecules and atoms occupy holes within the crystal structure of the metal.
D)  These substances are poor catalysts.
E)  These hydrides are stabilized by hydrogen bonding forces.F) None of the above
G) A) and D)

Exam 24: Nonmetallic Elements and Their Compounds

Arsenic,As,is

Correct Answer
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Which,if any,of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Correct Answer
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What are the products of the reaction of strontium hydride and water? SrH₂(s) + H₂O(l) →

Correct Answer
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The chemical that ranks first in production among all industrial chemicals is

Correct Answer
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What has metal and nonmetal characteristics?

Correct Answer
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Which best represents the allotrope(s) of oxygen?

Correct Answer
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__________________ is the addition of molecular hydrogen to compounds containing multiple bonds (double or triple).

Correct Answer
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Below is a representation of a sample of gas with molecules having the formula XO₂.Which element could NOT be represented by X?

Correct Answer
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In their elemental forms,the halogens are

Correct Answer
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Which one of these species exists as a diatomic element at room temperature?

Correct Answer
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Which of the following is a commercial application of phosphate compounds?

Correct Answer
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Which of the following is not a product of the reaction of zinc metal with nitric acid?

Correct Answer
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Which oxide is an amphoteric oxide?

Correct Answer
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Which of these compounds does not follow the octet rule?

Correct Answer
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What are the products of the reaction of potassium hydride and water? KH(s) + H₂O(l) →

Correct Answer
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How many lone electron pairs are in the N₂ molecule?

Correct Answer
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Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements.Which of the following statements is correct?

Correct Answer
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Which of these has a nonpolar covalent bond (i.e.,pure covalent) ?

Correct Answer
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Nonmetals are more electropositive than metals.

Correct Answer
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Exam 24: Nonmetallic Elements and Their Compounds

Arsenic,As,is

Correct AnswerverifiedShow Answer

Which,if any,of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Correct AnswerverifiedShow Answer

What are the products of the reaction of strontium hydride and water? SrH2(s) + H2O(l) →

Correct AnswerverifiedShow Answer

The chemical that ranks first in production among all industrial chemicals is

Correct AnswerverifiedShow Answer

What has metal and nonmetal characteristics?

Correct AnswerverifiedShow Answer

Which best represents the allotrope(s) of oxygen?

Correct AnswerverifiedShow Answer

__________________ is the addition of molecular hydrogen to compounds containing multiple bonds (double or triple).

Correct AnswerverifiedShow Answer

Below is a representation of a sample of gas with molecules having the formula XO2.Which element could NOT be represented by X?

Correct AnswerverifiedShow Answer

In their elemental forms,the halogens are

Correct AnswerverifiedShow Answer

Which one of these species exists as a diatomic element at room temperature?

Correct AnswerverifiedShow Answer

Which of the following is a commercial application of phosphate compounds?

Correct AnswerverifiedShow Answer

Consider the oxides XO2,where X is a main group element.Identify X in each of the following cases: a.XO2 is a natural component of the atmosphere,implicated in global warming. b.XO2 is a toxic,brown gas and a component of photochemical smog. c.XO2 is a colorless,toxic gas,implicated in acid rain.

Correct AnswerverifiedShow Answer

Which of the following is not a product of the reaction of zinc metal with nitric acid?

Correct AnswerverifiedShow Answer

Which oxide is an amphoteric oxide?

Correct AnswerverifiedShow Answer

Which of these compounds does not follow the octet rule?

Correct AnswerverifiedShow Answer

What are the products of the reaction of potassium hydride and water? KH(s) + H2O(l) →

Correct AnswerverifiedShow Answer

How many lone electron pairs are in the N2 molecule?

Correct AnswerverifiedShow Answer

Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements.Which of the following statements is correct?

Correct AnswerverifiedShow Answer

Which of these has a nonpolar covalent bond (i.e.,pure covalent) ?

Correct AnswerverifiedShow Answer

Nonmetals are more electropositive than metals.

Correct AnswerverifiedShow Answer

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What are the products of the reaction of strontium hydride and water? SrH₂(s) + H₂O(l) →

Correct Answer
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Below is a representation of a sample of gas with molecules having the formula XO₂.Which element could NOT be represented by X?

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What are the products of the reaction of potassium hydride and water? KH(s) + H₂O(l) →

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How many lone electron pairs are in the N₂ molecule?

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