Question 1

The strongest reducing agent in the group 3A is

Accepted Answer

A) B. 
B) Al. 
C) Ga. 
D) Tl. 
A) B. 
B) Al. 
C) Ga. 
D) Tl.

Question 2

-Which element indicated on the above periodic table forms a binary oxide with molecular structure (4)shown above?

Accepted Answer

A) element A 
B) element B 
C) element C 
D) element D 
A) element A 
B) element B 
C) element C 
D) element D

Question 3

Elements in period 2 of the periodic table differ markedly from the heavier elements in the same group due to their especially small ________ and high ________.

Accepted Answer

sizes,elec

Question 4

Using principles discussed in chapters 15 and 19,determine which of the following is the strongest acid.

Accepted Answer

A) HClO 
B) HClO2 
C) HClO3 
D) HClO4 
A) HClO 
B) HClO2 
C) HClO3 
D) HClO4

Question 5

Which one of the following elements can form more than four bonds with other elements?

Accepted Answer

A) C 
B) O 
C) F 
D) P 
A) C 
B) O 
C) F 
D) P

Question 6

The first ionization energy of gallium is greater than that of aluminum and the first ionization energy of thallium is greater than that of indium.A possible explanation for this is

Accepted Answer

A) This is the normal trend in ionization energy. 
B) Both Ga and Tl prefer to lose three electrons rather than one. 
C) Both Ga and Tl follow transition elements which are excellent shielders of nuclear charge. 
D) Ga follows a series of transition elements and Tl follows both a series of transition elements and inner transition elements which are poor shielders of nuclear charge. 
A) This is the normal trend in ionization energy. 
B) Both Ga and Tl prefer to lose three electrons rather than one. 
C) Both Ga and Tl follow transition elements which are excellent shielders of nuclear charge. 
D) Ga follows a series of transition elements and Tl follows both a series of transition elements and inner transition elements which are poor shielders of nuclear charge.

Question 7

In which compound does oxygen have a -1 oxidation state?

Accepted Answer

A) H2O 
B) H2O2 
C) O2 
D) MgO 
A) H2O 
B) H2O2 
C) O2 
D) MgO

Question 8

The oxidation number of sulfur in S O2 is ________.

Accepted Answer

Question 9

Which one of the following compounds exhibits the strongest hydrogen bonding between its molecules?

Accepted Answer

A) H F  
B) H Cl  
C) H Br  
D) H I  
A) H F  
B) H Cl  
C) H Br  
D) H I

Question 10

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order.  
-Which picture corresponds to potassium?

Accepted Answer

A) picture (a) 
B) picture (b) 
C) picture (c) 
D) picture (d) 
A) picture (a) 
B) picture (b) 
C) picture (c) 
D) picture (d)

Question 11

-Which element indicated on the above periodic table forms a binary hydride with molecular structure (2)shown above?

Accepted Answer

A) element A 
B) element B 
C) element C 
D) element D 
A) element A 
B) element B 
C) element C 
D) element D

Question 12

Which one of the following compounds that contains a Group 5A element is least likely to exist?

Accepted Answer

A) NBr3 
B) NBr5 
C) PBr3 
D) PBr5 
A) NBr3 
B) NBr5 
C) PBr3 
D) PBr5

Question 13

What statement is inconsistent about graphite?

Accepted Answer

A) Carbon sheets are separated by a distance of 335 pm and are held together by weak London dispersion forces. 
B) Electrical conductivity parallel to the planar sheets is 1020 times greater than the conductivity of diamond. 
C) Pi electrons are delocalized and free to move perpendicular to the plane of the hexagonal sheets. 
D) A two-dimensional sheetlike structure in which each C atom uses sp2 hybrid orbitals. 
A) Carbon sheets are separated by a distance of 335 pm and are held together by weak London dispersion forces. 
B) Electrical conductivity parallel to the planar sheets is 1020 times greater than the conductivity of diamond. 
C) Pi electrons are delocalized and free to move perpendicular to the plane of the hexagonal sheets. 
D) A two-dimensional sheetlike structure in which each C atom uses sp2 hybrid orbitals.

Question 14

Which of the following elements is a solid at room temperature?

Accepted Answer

A) fluorine 
B) chlorine 
C) bromine 
D) iodine 
A) fluorine 
B) chlorine 
C) bromine 
D) iodine

The strongest reducing agent in the group 3A is

-Which element indicated on the above periodic table forms a binary oxide with molecular structure (4)shown above?

Elements in period 2 of the periodic table differ markedly from the heavier elements in the same group due to their especially small and high .

Using principles discussed in chapters 15 and 19,determine which of the following is the strongest acid.

Which one of the following elements can form more than four bonds with other elements?

The first ionization energy of gallium is greater than that of aluminum and the first ionization energy of thallium is greater than that of indium.A possible explanation for this is

In which compound does oxygen have a -1 oxidation state?

The oxidation number of sulfur in SO₂is ________.

Which one of the following compounds exhibits the strongest hydrogen bonding between its molecules?

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order. -Which picture corresponds to potassium?

-Which element indicated on the above periodic table forms a binary hydride with molecular structure (2)shown above?

Which one of the following compounds that contains a Group 5A element is least likely to exist?

What statement is inconsistent about graphite?

Which of the following elements is a solid at room temperature?

Chemical Tools: Experimentation and Measurement

Atoms, molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Periodicity and the Electronic Structure of Atoms

Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids, solids, and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Connections to Organic and Biological Chemistry

Filters

Exam 22: The Main-Group Elements

The strongest reducing agent in the group 3A is

-Which element indicated on the above periodic table forms a binary oxide with molecular structure (4)shown above?

Elements in period 2 of the periodic table differ markedly from the heavier elements in the same group due to their especially small ________ and high ________.

Using principles discussed in chapters 15 and 19,determine which of the following is the strongest acid.

Which one of the following elements can form more than four bonds with other elements?

The first ionization energy of gallium is greater than that of aluminum and the first ionization energy of thallium is greater than that of indium.A possible explanation for this is

In which compound does oxygen have a -1 oxidation state?

The oxidation number of sulfur in S O2 is ________.

Which one of the following compounds exhibits the strongest hydrogen bonding between its molecules?

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order. -Which picture corresponds to potassium?

-Which element indicated on the above periodic table forms a binary hydride with molecular structure (2)shown above?

Which one of the following compounds that contains a Group 5A element is least likely to exist?

What statement is inconsistent about graphite?

Which of the following elements is a solid at room temperature?

Chemical Tools: Experimentation and Measurement

Atoms, molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Periodicity and the Electronic Structure of Atoms

Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids, solids, and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Connections to Organic and Biological Chemistry

Filters

Elements in period 2 of the periodic table differ markedly from the heavier elements in the same group due to their especially small and high .

The oxidation number of sulfur in SO₂is ________.