Question 1

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) C) and D)
G) B) and C)

Question 2

Sulfur hexafluoride, SF6, is

Accepted Answer

A)   a reactive gas that decomposes when exposed to moisture.
B)   a reactive gas used to fluorinate organic compounds.
C)   an inert gas that is used as an electrical insulator.
D)   a reactant in the process of manufacturing non-stick coatings.
E)   used in the manufacture of sulfuric acid.F) A) and C)
G) All of the above

Question 3

Name the three allotropes of carbon and briefly describe their properties and structures.

Accepted Answer

Graphite is the most stable allotrope un...

Question 4

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) A) and B)
G) B) and E)

Question 5

The chlor-alkali process produces chlorine, Cl2(g) , in large quantities. What other industrially important substances are produced in this process?

Accepted Answer

A)   Na(s) , H2(g) 
B)   H2(g) , O2(g) 
C)   Hg(l) , NaCl(s) 
D)   Na(s) , O2(g) 
E)   NaOH(aq) , H2(g) F) B) and C)
G) C) and E)

Question 6

Hydrogen peroxide, H2O2, is

Accepted Answer

A)   a strong reducing agent.
B)   used as a drying agent.
C)   a colored liquid with a low boiling point.
D)   a strong acid.
E)   a component of rocket fuel.F) C) and D)
G) A) and D)

Question 7

Phosphoric acid (H3PO4) is a strong acid.

Accepted Answer

A) True 
 B)False

Question 8

Which of these elements is a solid at room temperature?

Accepted Answer

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

Question 9

What are the isotopes of hydrogen?

Accepted Answer

Hydrogen (...

Question 10

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) A) and C)

Question 11

What is the formal charge on the singly bonded oxygens in the Lewis structure for the carbonate ion?

Accepted Answer

A)   -1
B)   0
C)   -2
D)   +2
E)   +1F) All of the above
G) C) and D)

Question 12

Which of the following is a metalloid?

Accepted Answer

A)   Al
B)   Sn
C)   As
D)   Se
E)   BiF) A) and C)
G) None of the above

Question 13

How many valence electrons does a carbon atom have?

Accepted Answer

A)   2
B)   1
C)   6
D)   3
E)   4F) C) and E)
G) A) and B)

Question 14

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

Accepted Answer

Hydrogen (...

Question 15

Which of these species is not an acidic oxide?

Accepted Answer

A)   P4O10
B)   P4O6
C)   SO3
D)   CO
E)   SiO2F) B) and E)
G) C) and D)

Question 16

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) A) and B)
G) B) and E)

Question 17

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) D) and E)
G) All of the above

Question 18

________ ________ are formed when molecular hydrogen combines with transition metals but the ratio of hydrogen atom to transition metal is not constant.

Accepted Answer

Interstiti...

Question 19

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 E)
G) A) and D)

Question 20

Which is NOT a hydride?

Accepted Answer

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

Exam 25: Organic Chemistry

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

Correct AnswerverifiedShow Answer

The chlor-alkali process produces chlorine, Cl2(g) , in large quantities. What other industrially important substances are produced in this process?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

________ ________ are formed when molecular hydrogen combines with transition metals but the ratio of hydrogen atom to transition metal is not constant.

Correct AnswerverifiedInterstiti...View AnswerShow Answer

How many valence electrons does a carbon atom have?

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

Correct AnswerverifiedHydrogen (...View AnswerShow Answer

Name the three allotropes of carbon and briefly describe their properties and structures.

Correct AnswerverifiedGraphite is the most stable allotrope un...View AnswerShow Answer

Which of these species is not an acidic oxide?

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Hydrogen peroxide, H2O2, is

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Phosphoric acid (H3PO4) is a strong acid.

Correct AnswerverifiedShow Answer

What are the isotopes of hydrogen?

Correct AnswerverifiedHydrogen (...View AnswerShow Answer

Which is NOT a hydride?

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

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Which of these elements is a solid at room temperature?

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

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Which of these compounds does not follow the octet rule?

Correct AnswerverifiedShow Answer

Which of the following is a metalloid?

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What is the formal charge on the singly bonded oxygens in the Lewis structure for the carbonate ion?

Correct AnswerverifiedShow Answer

Sulfur hexafluoride, SF6, is

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

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The chlor-alkali process produces chlorine, Cl₂(g) , in large quantities. What other industrially important substances are produced in this process?

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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are formed when molecular hydrogen combines with transition metals but the ratio of hydrogen atom to transition metal is not constant.

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

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Hydrogen (...
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Graphite is the most stable allotrope un...
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Hydrogen peroxide, H₂O₂, is

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Phosphoric acid (H₃PO₄) is a strong acid.

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Hydrogen (...
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Sulfur hexafluoride, SF₆, is

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