Question 1

Which of the following ions and atoms has the greatest radius?

Accepted Answer

A)  Se 2−
B)  Br −
C)  Rb +
D)  Sr 2+
E)  KrF) D) and E)
G) C) and D)

Question 2

Sodium hypochlorite is used

Accepted Answer

A)  in chemical analysis.
B)  as an oxidizer in rocket fuels.
C)  as a disinfectant.
D)  in the manufacture of steel.
E)  as a detergent.F) B) and D)
G) B) and C)

Question 3

The largest electronegativities are found in the __________ __________ region of the periodic table.

Accepted Answer

A)  upper left
B)  upper right
C)  lower left
D)  lower right
E)  transition element ( d-block) F) C) and E)
G) A) and E)

Question 4

Which of the following will have the highest boiling point?

Accepted Answer

A)  O 2
B)  Cl 2
C)  Br 2
D)  I 2
E)  XeF) None of the above
G) B) and C)

Question 5

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)  XY 2
C)  XY 3
D)  XY 5
E)  All of these choices are correct.F) A) and B)
G) A) and C)

Question 6

Which of the following is the strongest acid?

Accepted Answer

A)  HClO 3
B)  HBrO 3
C)  HIO 3
D)  HIO 2
E)  HClOF) B) and C)
G) A) and E)

Question 7

Ionic hydrides do not have exact (stoichiometric) formulas.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A)  K( s) + H 2( g) + OH −( aq) 
B)  K( s) + H 2( g) + O 2( g) 
C)  KOH( s) + O 2( g) 
D)  K +( aq) + H 2( g) + O 2( g) 
E)  K +( aq) + H 2( g) + OH −( aq) F) A) and E)
G) A) and D)

Question 9

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 10

Comparing neon with xenon, one would expect neon to have a __________ density at STP, and a __________ normal boiling point than xenon.

Accepted Answer

A)  higher, higher
B)  higher, lower
C)  lower, higher
D)  lower, lower
E)  Since they are both noble gases, their densities and boiling points will be very similar.F) All of the above
G) A) and C)

Question 11

Which of the following oxides will give the most basic solution when dissolved in water?

Accepted Answer

A)  SO 2
B)  CO 2
C)  K 2O
D)  P 4O 10
E)  SO 3F) C) and D)
G) B) and D)

Question 12

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Accepted Answer

A)  Silicon-based polymers are larger molecules than carbon-based polymers.
B)  Silicon-based polymers generally have a repeating silicon-oxygen link while carbon-based polymers can have carbon-carbon links.
C)  Silicon-based polymers generally have inorganic elements attached to the chain while carbon-based polymers generally have organic groups attached.
D)  Silicon-based polymers tend to be rigid while carbon-based polymers are generally flexible.
E)  Silicon forms stronger bonds than carbon.F) D) and E)
G) C) and D)

Question 13

Predict the products for the reaction of the following set of reactants. BaO(s)  + CO2(g)  →

Accepted Answer

A)  BaCO 3( s) 
B)  Ba( s) + CO( g) + O 2( g) 
C)  BaO 2( s) + CO( g) 
D)  Ba 2CO 3( s) 
E)  BaC 2( s) + O 2( g) F) A) and B)
G) A) and C)

Question 14

When elements from a group exhibit more than one oxidation state,

Accepted Answer

A)  the higher oxidation state is more important as one goes down a group.
B)  the lower oxidation state is more important as one goes down a group.
C)  both oxidation states are equally important throughout the group.
D)  the oxidation state will be affected by the elements on either side of it in the period.
E)  None of these choices are correct.F) D) and E)
G) B) and E)

Question 15

Potassium nitrate is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A)  Sr 2+( aq) + H 2( g) + O 2( g) 
B)  Sr 2+( aq) + H 2( g) + OH −( aq) 
C)  Sr( s) + H 2( g) + OH −( aq) 
D)  Sr( s) + H 3O +( aq) 
E)  None of these choices are correct.F) A) and B)
G) A) and E)

Question 17

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 useful catalysts.
E)  These hydrides are stabilized by hydrogen bonding forces.F) None of the above
G) C) and D)

Question 18

In which of the following ways is lithium different from the other alkali metals?

Accepted Answer

A)  Its salts are much more soluble in water than those of the other alkali metals.
B)  It has an unusually high density.
C)  It forms molecular compounds with the hydrocarbon groups of organic halides.
D)  Its ionization energy is lower than expected.
E)  It does not react with water at room temperature.F) D) and E)
G) A) and C)

Question 19

Oxides of group 1A (1) and 2A (2) elements are strongly acidic.

Accepted Answer

A) True 
 B)False

Question 20

Neon does not form any known compounds.

Accepted Answer

A) True 
 B)False

Exam 14: Periodic Patterns in the Main-Group Elements

Oxides of group 1A (1) and 2A (2) elements are strongly acidic.

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Predict the products for the reaction of the following set of reactants. BaO(s) + CO2(g) →

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The polymers containing silicon differ from polymers of carbon in which of the following ways?

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

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Which of the following oxides will give the most basic solution when dissolved in water?

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Which of the following ions and atoms has the greatest radius?

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Which of the following will have the highest boiling point?

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

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In which of the following ways is lithium different from the other alkali metals?

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Sulfuric acid is produced when sulfur dioxide dissolves in water.

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

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When elements from a group exhibit more than one oxidation state,

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Ionic hydrides do not have exact (stoichiometric) formulas.

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Which of the following is the strongest acid?

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

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The largest electronegativities are found in the __________ __________ region of the periodic table.

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Comparing neon with xenon, one would expect neon to have a __________ density at STP, and a __________ normal boiling point than xenon.

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Neon does not form any known compounds.

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Potassium nitrate is a strong reducing agent.

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Sodium hypochlorite is used

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Predict the products for the reaction of the following set of reactants. BaO(s) + CO₂(g) →

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

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

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The largest electronegativities are found in the region of the periodic table.

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Comparing neon with xenon, one would expect neon to have a density at STP, and a normal boiling point than xenon.

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