Question 1

Which of these elements is the most abundant in the universe?

Accepted Answer

A)  Hydrogen
B)  Nitrogen
C)  Carbon
D)  Oxygen
E)  SodiumF) B) and D)
G) A) and B)

Question 2

The electron dot formula for molecular oxygen has

Accepted Answer

A)  a single covalent bond.
B)  an ionic bond.
C)  a double covalent bond.
D)  a total of 8 × 2 = 16 electron dots.
E)  a total of 8 × 4 = 32 electron dots.F) A) and D)
G) A) and C)

Question 3

The chemical formula for the superoxide ion is

Accepted Answer

A)  O-.
B)  O22-.
C)  O2-.
D)  O3-.
E)  O2-.F) B) and C)
G) A) and E)

Question 4

The acidity of oxides of main group elements increases across a period from left to right.

Accepted Answer

A) True 
 B)False

Question 5

Which of these is a polar covalent bond?

Accepted Answer

A)  Na-Cl
B)  Br-Br
C)  P-Cl
D)  All of the choices are polar covalent bonds.
E)  None of these choices is a polar covalent bond.F) A) and B)
G) C) and D)

Question 6

Which of the following has the most allotropes?

Accepted Answer

A)  Carbon
B)  Sulfur
C)  Oxygen
D)  Selenium
E)  NitrogenF) A) and B)
G) A) and C)

Question 7

Ozone (O3) and oxygen gas (O2) are examples of

Accepted Answer

A)  isotopes.
B)  allotropes.
C)  polymorphs.
D)  alloys.
E)  amphoterism.F) A) and E)
G) A) and D)

Question 8

Which halogen does not form compounds with both positive and negative oxidation states?

Accepted Answer

A)  Chlorine
B)  Fluorine
C)  Iodine
D)  Bromine
E)  AstatineF) C) and E)
G) None of the above

Question 9

What is the formal charge on sulfur in the best Lewis structure for the SCN-?

Accepted Answer

A)  +2
B)  -2
C)  -1
D)  +1
E)  0F) B) and C)
G) B) and D)

Question 10

The halogens act as oxidizing agents in most of their reactions.

Accepted Answer

A) True 
 B)False

Question 11

Air is made up of approximately 80% of which of the following?

Accepted Answer

A)  Hydrogen
B)  Nitrogen
C)  Carbon
D)  Oxygen
E)  HeliumF) C) and E)
G) B) and E)

Question 12

How many valence electrons does a carbon atom have?

Accepted Answer

A)  2
B)  1
C)  6
D)  3
E)  4F) None of the above
G) All of the above

Question 13

Which is NOT true concerning sulfur?

Accepted Answer

A)  Sulfur reacts with carbon to form a flammable liquid.
B)  Sulfur reacts with fluorine to form an inert compound.
C)  Sulfur reacts with oxygen to form a strongly acid oxide.
D)  Sulfur reacts with hydrogen to form a pungent,foul-smelling gas.
E)  In its solid elemental form,sulfur exists as an eight-membered ring.F) All of the above
G) A) and B)

Question 14

What is the charge on the monatomic ion of nitrogen,the nitride ion?

Accepted Answer

A)  -3
B)  +2
C)  -1
D)  -2
E)  +1F) A) and B)
G) B) and D)

Question 15

What name is given to a compound containing hydrogen and a metal or hydrogen and a nonmetal?

Accepted Answer

The answer of What name is given to a compound...

Question 16

P4O6 and P4O10 are allotropes of phosphorus.

Accepted Answer

A) True 
 B)False

Question 17

What process involves the addition of a hydrogen molecule to compounds containing multiple bonds?

Accepted Answer

A)  Hydration
B)  Alkanation
C)  Hydrogenation
D)  Esterification
E)  CoagulationF) B) and D)
G) B) and C)

Question 18

What type of bond is the C - Cl bond in CCl4?

Accepted Answer

A)  Nonpolar covalent
B)  Ionic
C)  Polar covalent
D)  Polar ionic
E)  Coordinate covalentF) A) and B)
G) D) and E)

Question 19

Which of these elements is a liquid at room temperature?

Accepted Answer

A)  Hydrogen
B)  Nitrogen
C)  Bromine
D)  Sulfur
E)  PhosphorusF) B) and D)
G) A) and B)

Exam 24: Nonmetallic Elements and Their Compounds

How many valence electrons does a carbon atom have?

Correct Answer
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Which is NOT true concerning sulfur?

Correct Answer
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Air is made up of approximately 80% of which of the following?

Correct Answer
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What type of bond is the C - Cl bond in CCl₄?

Correct Answer
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Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
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What name is given to a compound containing hydrogen and a metal or hydrogen and a nonmetal?

Correct Answer
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Which of the following has the most allotropes?

Correct Answer
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Which of these elements is a liquid at room temperature?

Correct Answer
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Which of these is a polar covalent bond?

Correct Answer
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Which of these elements is the most abundant in the universe?

Correct Answer
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What is the charge on the monatomic ion of nitrogen,the nitride ion?

Correct Answer
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P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

Correct Answer
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Which halogen does not form compounds with both positive and negative oxidation states?

Correct Answer
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What is the formal charge on sulfur in the best Lewis structure for the SCN^-?

Correct Answer
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What process involves the addition of a hydrogen molecule to compounds containing multiple bonds?

Correct Answer
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The acidity of oxides of main group elements increases across a period from left to right.

Correct Answer
verified

The electron dot formula for molecular oxygen has

Correct Answer
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The chemical formula for the superoxide ion is

Correct Answer
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The halogens act as oxidizing agents in most of their reactions.

Correct Answer
verified

Exam 24: Nonmetallic Elements and Their Compounds

How many valence electrons does a carbon atom have?

Correct AnswerverifiedShow Answer

Which is NOT true concerning sulfur?

Correct AnswerverifiedShow Answer

Air is made up of approximately 80% of which of the following?

Correct AnswerverifiedShow Answer

What type of bond is the C - Cl bond in CCl4?

Correct AnswerverifiedShow Answer

Ozone (O3) and oxygen gas (O2) are examples of

Correct AnswerverifiedShow Answer

What name is given to a compound containing hydrogen and a metal or hydrogen and a nonmetal?

Correct AnswerverifiedShow Answer

Which of the following has the most allotropes?

Correct AnswerverifiedShow Answer

Which of these elements is a liquid at room temperature?

Correct AnswerverifiedShow Answer

Which of these is a polar covalent bond?

Correct AnswerverifiedShow Answer

Which of these elements is the most abundant in the universe?

Correct AnswerverifiedShow Answer

What is the charge on the monatomic ion of nitrogen,the nitride ion?

Correct AnswerverifiedShow Answer

P4O6 and P4O10 are allotropes of phosphorus.

Correct AnswerverifiedShow Answer

Which halogen does not form compounds with both positive and negative oxidation states?

Correct AnswerverifiedShow Answer

What is the formal charge on sulfur in the best Lewis structure for the SCN-?

Correct AnswerverifiedShow Answer

What process involves the addition of a hydrogen molecule to compounds containing multiple bonds?

Correct AnswerverifiedShow Answer

The acidity of oxides of main group elements increases across a period from left to right.

Correct AnswerverifiedShow Answer

The electron dot formula for molecular oxygen has

Correct AnswerverifiedShow Answer

The chemical formula for the superoxide ion is

Correct AnswerverifiedShow Answer

The halogens act as oxidizing agents in most of their reactions.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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What type of bond is the C - Cl bond in CCl₄?

Correct Answer
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Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

Correct Answer
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Correct Answer
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What is the formal charge on sulfur in the best Lewis structure for the SCN^-?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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