Question 1

How does an electron well form in a nano-material?

Accepted Answer

A) It migrates to an area of higher energy. 
B) They frorm as atoms produce discrete energy levels. 
C) Their spins align in a magnetic field. 
D) They form as Cooper pairs. 
E) A cluster of atoms in a medium traps them. 
A) It migrates to an area of higher energy. 
B) They frorm as atoms produce discrete energy levels. 
C) Their spins align in a magnetic field. 
D) They form as Cooper pairs. 
E) A cluster of atoms in a medium traps them. E

Question 2

When a magnet is brought near a ferrofluid,the particles in the fluid try to align themselves with the magnetic field.

Accepted Answer

A) True 
 B)False  True

Question 3

What material can be used to strengthen ceramic materials?

Accepted Answer

A) TiB2. 
B) CaCO3.  
C) Phosphate salts. 
D) Graphite composites. 
E) Mother-of-pearl. 
A) TiB2. 
B) CaCO3.  
C) Phosphate salts. 
D) Graphite composites. 
E) Mother-of-pearl. A

Question 4

What is the end result of the sol-gel process?

Accepted Answer

A) A silicon-based molecular solid. 
B) A silicon rich ionic structure. 
C) Corundum based polymers. 
D) A silicon oxide network structure. 
E) A limestone based network solid. 
A) A silicon-based molecular solid. 
B) A silicon rich ionic structure. 
C) Corundum based polymers. 
D) A silicon oxide network structure. 
E) A limestone based network solid.

Question 5

Paramagnetism is a weaker phenomenon than ferromagnetism.

Accepted Answer

A) True 
 B)False

Question 6

What term is used for the emission of light from molecules excited by radiation of higher frequency?

Accepted Answer

A) Phosphorescence 
B) Fluorescence 
C) Both A and B,above. 
D) None of the above. 
A) Phosphorescence 
B) Fluorescence 
C) Both A and B,above. 
D) None of the above.

Question 7

To what two chemicals are most glasses not resistant?

Accepted Answer

Fluorides

Question 8

What are the two major elements in brass?

Accepted Answer

A) Copper and tin. 
B) Copper and lead 
C) Copper and zinc. 
D) Zinc and lead. 
E) Copper and iron. 
A) Copper and tin. 
B) Copper and lead 
C) Copper and zinc. 
D) Zinc and lead. 
E) Copper and iron.

Question 9

What is a p-type semi-conductor?

Accepted Answer

A) One with excess electrons in the valence band. 
B) One with excess electrons in the conduction band. 
C) One with a less-than-full valence band. 
D) One with a less-than-full conduction band. 
E) One with electrons positively in the conduction band. 
A) One with excess electrons in the valence band. 
B) One with excess electrons in the conduction band. 
C) One with a less-than-full valence band. 
D) One with a less-than-full conduction band. 
E) One with electrons positively in the conduction band.

Question 10

What element besides iron and carbon is necessary to produced stainless steel?

Accepted Answer

A) Chromium. 
B) Vanadium. 
C) Phosphorus. 
D) Sulfur. 
E) Zinc. 
A) Chromium. 
B) Vanadium. 
C) Phosphorus. 
D) Sulfur. 
E) Zinc.

Question 11

What is the definition of a ceramic?

Accepted Answer

A) An organic material that has been hardened by heating to a high temperature. 
B) An inorganic material that has been hardened by heating to a high temperature. 
C) An inorganic material that has been shaped or molded by heating to a high temperature. 
D) An organic material that has been shaped or molded by heating to a high temperature. 
E) A clay without hydrates within it. 
A) An organic material that has been hardened by heating to a high temperature. 
B) An inorganic material that has been hardened by heating to a high temperature. 
C) An inorganic material that has been shaped or molded by heating to a high temperature. 
D) An organic material that has been shaped or molded by heating to a high temperature. 
E) A clay without hydrates within it.

Question 12

What is a magnetic domain?

Accepted Answer

A) A magnetic field. 
B) A region of temporary aligned spins. 
C) A region of permanent aligned spins. 
D) An induced magnetic field. 
E) A randomly applied magnetic field. 
A) A magnetic field. 
B) A region of temporary aligned spins. 
C) A region of permanent aligned spins. 
D) An induced magnetic field. 
E) A randomly applied magnetic field.

Question 13

When a material is superconductive,which of the following statements best describes it?

Accepted Answer

A) It has negligible electrical resistance. 
B) It has high electrical resistance. 
C) It has negligible electrons in the conduction band. 
D) It has electrical resistance in one phase. 
E) None of the above is correct. 
A) It has negligible electrical resistance. 
B) It has high electrical resistance. 
C) It has negligible electrons in the conduction band. 
D) It has electrical resistance in one phase. 
E) None of the above is correct.

Question 14

Ceramic materials are hard,and tend not to be brittle.

Accepted Answer

A) True 
 B)False

Question 15

How is granite best described?

Accepted Answer

A) A common mineral made from quartz and metal cations. 
B) A rare mineral made from mica,quartz,and calcium carbonate. 
C) A mixture of mica,alumina,and feldspar. 
D) A mixture of mica,quartz,and feldspar. 
E) A rare mineral made from mica,quartz,and feldspar. 
A) A common mineral made from quartz and metal cations. 
B) A rare mineral made from mica,quartz,and calcium carbonate. 
C) A mixture of mica,alumina,and feldspar. 
D) A mixture of mica,quartz,and feldspar. 
E) A rare mineral made from mica,quartz,and feldspar.

Question 16

Resistance in a material is defined as:

Accepted Answer

A) R = $\kappa$.A2 / l  
B) R = $\kappa$.A / l 
C) R = $\kappa$.l / A 
D) R = $\kappa$.A / l2 
E) R = $\kappa$2.A / l 
A) R = $\kappa$.A2 / l  
B) R = $\kappa$.A / l 
C) R = $\kappa$.l / A 
D) R = $\kappa$.A / l2 
E) R = $\kappa$2.A / l

Question 17

What is a eutectic point?

Accepted Answer

A) 0an alloy's point of equal percentage of elements,by mass.  
B) An alloy's highest possible melting point. 
C) An alloy's lowest possible melting point. 
D) An alloy's point of equal percentage of elements,by volume.  
E) An alloy's liquid - solid temperature line. 
A) 0an alloy's point of equal percentage of elements,by mass.  
B) An alloy's highest possible melting point. 
C) An alloy's lowest possible melting point. 
D) An alloy's point of equal percentage of elements,by volume.  
E) An alloy's liquid - solid temperature line.

Question 18

How does limestone react to acidic solutions?

Accepted Answer

A) Acids harden it. 
B) It reacts very swiftly. 
C) It tends to dissolve. 
D) It is resistant. 
E) It neutralizes acids. 
A) Acids harden it. 
B) It reacts very swiftly. 
C) It tends to dissolve. 
D) It is resistant. 
E) It neutralizes acids.

Question 19

Upon what are silicates based?

Accepted Answer

A) Repeating silicon chains. 
B) Repeating silicon layers. 
C) SiO4 units. 
D) SiO3 units. 
E) SiO5 units. 
A) Repeating silicon chains. 
B) Repeating silicon layers. 
C) SiO4 units. 
D) SiO3 units. 
E) SiO5 units.

Question 20

At what general temperature are interstitial carbides formed?

Accepted Answer

A) 00oC  
B) 200oC  
C) 1,000oC   
D) 2,000oC  
E) 20,000oC  
A) 00oC  
B) 200oC  
C) 1,000oC   
D) 2,000oC  
E) 20,000oC

How does an electron well form in a nano-material?

When a magnet is brought near a ferrofluid,the particles in the fluid try to align themselves with the magnetic field.

What material can be used to strengthen ceramic materials?

What is the end result of the sol-gel process?

Paramagnetism is a weaker phenomenon than ferromagnetism.

What term is used for the emission of light from molecules excited by radiation of higher frequency?

To what two chemicals are most glasses not resistant?

What are the two major elements in brass?

What is a p-type semi-conductor?

What element besides iron and carbon is necessary to produced stainless steel?

What is the definition of a ceramic?

What is a magnetic domain?

When a material is superconductive,which of the following statements best describes it?

Ceramic materials are hard,and tend not to be brittle.

How is granite best described?

Resistance in a material is defined as:

What is a eutectic point?

How does limestone react to acidic solutions?

Upon what are silicates based?

At what general temperature are interstitial carbides formed?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

Exam 7: Inorganic Materials

How does an electron well form in a nano-material?

When a magnet is brought near a ferrofluid,the particles in the fluid try to align themselves with the magnetic field.

What material can be used to strengthen ceramic materials?

What is the end result of the sol-gel process?

Paramagnetism is a weaker phenomenon than ferromagnetism.

What term is used for the emission of light from molecules excited by radiation of higher frequency?

To what two chemicals are most glasses not resistant?

What are the two major elements in brass?

What is a p-type semi-conductor?

What element besides iron and carbon is necessary to produced stainless steel?

What is the definition of a ceramic?

What is a magnetic domain?

When a material is superconductive,which of the following statements best describes it?

Ceramic materials are hard,and tend not to be brittle.

How is granite best described?

Resistance in a material is defined as:

What is a eutectic point?

How does limestone react to acidic solutions?

Upon what are silicates based?

At what general temperature are interstitial carbides formed?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters