Question 1

What is the total number of lone pairs in NCl3?

Accepted Answer

A)  8
B)  13
C)  6
D)  10
E)  9F) A) and E)
G) C) and D)

Question 2

What is formed when molecular hydrogen combines with any alkali metal?

Accepted Answer

The answer of What is formed when molecular hydrogen combines...

Question 3

Which of these compounds is most likely to be covalent?

Accepted Answer

A)  CaO
B)  CsOH
C)  LiF
D)  Sr(NO3) 2
E)  NF3F) C) and D)
G) A) and B)

Question 4

One important feature of the chemistry of carbon is

Accepted Answer

A)  its large radius that allows other atoms to fit easily around it.
B)  its low electronegativity that allows it to ionize easily.
C)  its amphoteric behavior.
D)  its ability to form multiple bonds with hydrogen.
E)  its ability to catenate.F) All of the above
G) A) and C)

Question 5

___________,___________,and ___________ are the three isotopes of hydrogen.

Accepted Answer

Hydrogen (or protium); deuterium;tritium

Question 6

Carbon combines with metals to form which of the following ionic compounds?

Accepted Answer

A)  Organo metal complex ions
B)  Carbides
C)  Carbonates
D)  Oxides
E)  Carbon cannot bond to metals.F) B) and C)
G) All of the above

Question 7

What products are formed from the reaction of Cl2(g) with I-(aq) ?

Accepted Answer

A)  ICl
B)  ICl2
C)  ICl3
D)  I2 and Cl-
E)  I and Cl2-F) A) and E)
G) A) and B)

Question 8

Of the three oxides SiO2,MgO,and P4O10,the most acidic oxide is P4O10.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is an accurate comparison of the properties of nitrogen and oxygen?

Accepted Answer

A)  Both oxygen and nitrogen form anions easily.
B)  Oxygen is a strong oxidizing agent while nitrogen is a strong reducing agent.
C)  Nitrogen uses more oxidation states in its compounds than oxygen does.
D)  Nitrogen is more reactive than oxygen.
E)  Nitrogen does not form naturally occurring compounds,but oxygen does.F) A) and B)
G) A) and C)

Question 10

What are the isotopes of hydrogen?

Accepted Answer

Hydrogen (protium),deuterium,and tritium

Question 11

Which of these elements is a solid at room temperature?

Accepted Answer

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

Question 12

Which of the following is a metalloid?

Accepted Answer

A)  Al
B)  Sn
C)  As
D)  Se
E)  BiF) A) and D)
G) B) and D)

Question 13

Which of these hydrides is the most ionic?

Accepted Answer

A)  LiH
B)  NaH
C)  CH4
D)  NH3
E)  RbHF) B) and C)
G) A) and E)

Question 14

Chlorine gas is prepared commercially by the

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 D)
G) None of the above

Question 15

How many resonance structures does the sulfur dioxide molecule have?

Accepted Answer

A)  0
B)  3
C)  1
D)  2
E)  4F) D) and E)
G) C) and D)

Question 16

Which of these substances will have a Lewis structure with an incomplete octet?

Accepted Answer

A)  SO2
B)  CO
C)  NO
D)  Br2
E)  CO2F) A) and E)
G) A) and C)

Question 17

Which of the following is the strongest acid?

Accepted Answer

A)  HClO3
B)  HBrO3
C)  HIO3
D)  HIO2
E)  HClOF) A) and B)
G) B) and D)

Question 18

Which of the following elements is essential to life because it is a component of proteins and nucleic acids?

Accepted Answer

A)  Phosphorus
B)  Sulfur
C)  Chlorine
D)  Bromine
E)  NitrogenF) None of the above
G) B) and E) E

Question 19

Which is true concerning the difference between second-row and third-row main group nonmetals?

Accepted Answer

A)  Third-row nonmetals react readily with acids,while second-row nonmetals are mostly unreactive towards acids.
B)  Third-row hydrides tend to be more acidic than second-row hydrides.
C)  Third-row oxides tend to be less basic than second-row oxides.
D)  In their elemental forms,third-row nonmetals are comprised of molecules,while second-row nonmetals are comprised of individual atoms.
E)  Atoms of third-row nonmetals may have high oxidation numbers,while atoms of second-row nonmetals may only have negative oxidation numbers.F) A) and B)
G) C) and E)

Question 20

The term catenation describes the

Accepted Answer

A)  tendency of carbon atoms to form cations in the presence of alkali metals.
B)  process of creating synthetic gas from coal.
C)  extraction of precious metals with sodium or potassium cyanide.
D)  ability of carbon atoms to form long chains and rings.
E)  interaction of Group 4A elements with Group 8A elements at high pressures and temperatures to form coordination compounds.F) A) and C)
G) A) and E)

Exam 24: Nonmetallic Elements and Their Compounds

What is the total number of lone pairs in NCl3?

Correct AnswerverifiedShow Answer

What is formed when molecular hydrogen combines with any alkali metal?

Correct AnswerverifiedShow Answer

Which of these compounds is most likely to be covalent?

Correct AnswerverifiedShow Answer

One important feature of the chemistry of carbon is

Correct AnswerverifiedShow Answer

___________,___________,and ___________ are the three isotopes of hydrogen.

Correct AnswerverifiedHydrogen (or protium); deuterium;tritium

Carbon combines with metals to form which of the following ionic compounds?

Correct AnswerverifiedShow Answer

What products are formed from the reaction of Cl2(g) with I-(aq) ?

Correct AnswerverifiedShow Answer

Of the three oxides SiO2,MgO,and P4O10,the most acidic oxide is P4O10.

Correct AnswerverifiedShow Answer

Which of the following is an accurate comparison of the properties of nitrogen and oxygen?

Correct AnswerverifiedShow Answer

What are the isotopes of hydrogen?

Correct AnswerverifiedHydrogen (protium),deuterium,and tritium

Which of these elements is a solid at room temperature?

Correct AnswerverifiedShow Answer

Which of the following is a metalloid?

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Which of these hydrides is the most ionic?

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Chlorine gas is prepared commercially by the

Correct AnswerverifiedShow Answer

How many resonance structures does the sulfur dioxide molecule have?

Correct AnswerverifiedShow Answer

Which of these substances will have a Lewis structure with an incomplete octet?

Correct AnswerverifiedShow Answer

Which of the following is the strongest acid?

Correct AnswerverifiedShow Answer

Which of the following elements is essential to life because it is a component of proteins and nucleic acids?

Correct AnswerverifiedE

Which is true concerning the difference between second-row and third-row main group nonmetals?

Correct AnswerverifiedShow Answer

The term catenation describes the

Correct AnswerverifiedShow Answer

What is the total number of lone pairs in NCl₃?

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_____,_,and _______ are the three isotopes of hydrogen.

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Hydrogen (or protium); deuterium;tritium

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What products are formed from the reaction of Cl₂(g) with I^-(aq) ?

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Of the three oxides SiO₂,MgO,and P₄O₁₀,the most acidic oxide is P₄O₁₀.

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Hydrogen (protium),deuterium,and tritium

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E

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