Chemical Interactions - Properties Of Carbon | Attempts: 248

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Quizzes Created: 1 | Total Attempts: 248

Questions: 13 | Attempts: 248 | Updated: Feb 23, 2023

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Chemical Interactions - Properties Of Carbon - Quiz

Study of carbon and its properties

Questions and Answers

1.

What is the atomic number for carbon?
- A.
  
  Six
- B.
  
  Four
- C.
  
  Two
Correct Answer
A. Six

Explanation
The atomic number of an element represents the number of protons in the nucleus of its atom. In the case of carbon, the atomic number is six, which means that a carbon atom contains six protons. This is a fundamental characteristic of carbon and distinguishes it from other elements on the periodic table.

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1
0
2.

What is the hardest mineral formed by carbon?
- A.
  
  Graphite
- B.
  
  Carbonite
- C.
  
  Diamond
- D.
  
  Fullerenes
- E.
  
  Nanotube
Correct Answer
C. Diamond

Explanation
Diamond is the hardest mineral formed by carbon. This is because of its unique crystal structure, which consists of strong covalent bonds between carbon atoms. These bonds create a rigid and tightly packed lattice structure, making diamond extremely hard and resistant to scratching. In contrast, graphite, carbonite, fullerenes, and nanotubes have different structures and bonding arrangements, resulting in softer and less durable materials compared to diamond.

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3.

In a nanotube, carbon atoms are arranged in a
- A.
  
  Geodesic dome
- B.
  
  Crystal structure
- C.
  
  Ring
- D.
  
  Long, hollow cylinder or tube
Correct Answer
D. Long, hollow cylinder or tube

Explanation
The correct answer is "long, hollow cylinder or tube". A nanotube is a structure made up of carbon atoms arranged in a cylindrical shape, forming a hollow tube. This structure gives nanotubes unique properties, such as high strength and electrical conductivity. The arrangement of carbon atoms in a nanotube allows for various applications in fields like electronics, materials science, and medicine.

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4.

What is the lead in a pencil?
- A.
  
  Grapherene
- B.
  
  Impure carbon
- C.
  
  Graphite
- D.
  
  Hydrocarbon
Correct Answer
C. GrapHite

Explanation
Graphite is the correct answer because it is the material commonly used as the "lead" in pencils. Pencils do not actually contain lead, but rather a mixture of graphite and clay. Graphite is a form of carbon that has a layered structure, allowing it to leave a mark on paper when applied with pressure. It is a soft, dark gray substance that is commonly used in pencils due to its ability to easily transfer onto paper and create smooth lines.

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5.

How many valence electrons do carbon atoms have?
- A.
  
  Two
- B.
  
  Six
- C.
  
  Four
- D.
  
  Zero
Correct Answer
C. Four

Explanation
Carbon atoms have four valence electrons. Valence electrons are the electrons in the outermost energy level of an atom and are involved in chemical bonding. Since carbon is in Group 14 of the periodic table, it has four valence electrons. These electrons can form covalent bonds with other atoms, allowing carbon to form a wide variety of compounds.

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6.

What are the ways that bonds between atoms can be represented?Make sure the answer includes all the ways.
- A.
  
  Ring and branched
- B.
  
  Branched, ring and straight
- C.
  
  Straight and branched
- D.
  
  Branched, ring, straight and tubed
Correct Answer
B. Branched, ring and straight

Explanation
The ways that bonds between atoms can be represented are branched, ring, and straight.

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7.

What is a chemical bond?
- A.
  
  A force that holds branched bonds together
- B.
  
  A force that holds chemical experiments together
- C.
  
  A force that hods two carbons together
- D.
  
  A force that holds two atoms together
Correct Answer
D. A force that holds two atoms together

Explanation
A chemical bond is a force that holds two atoms together. Chemical bonds are formed when atoms share or transfer electrons in order to achieve a stable electron configuration. This force is responsible for the formation of molecules and compounds, and it determines the properties and behavior of substances. Chemical bonds can be covalent, where electrons are shared between atoms, or ionic, where electrons are transferred from one atom to another.

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8.

What is the melting point of diamond?
- A.
  
  3000 degrees C
- B.
  
  3500 degrees C
- C.
  
  2500 degrees C
- D.
  
  3500 degrees F
Correct Answer
B. 3500 degrees C

Explanation
Diamond has a very high melting point due to its strong covalent bonds. It requires a temperature of around 3500 degrees Celsius to melt diamond, making it one of the highest melting points among all known substances.

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9.

Diamonds a re a sold substance that are
- A.
  
  Hard and reactive
- B.
  
  Hard and nonreactive
- C.
  
  Slippery
- D.
  
  Soft and nonreactive
Correct Answer
B. Hard and nonreactive

Explanation
Diamonds are known to be one of the hardest substances on Earth, which is why they are often used in industrial applications such as cutting and grinding tools. Additionally, diamonds are also nonreactive, meaning they do not easily react with other substances or undergo chemical changes. This property makes diamonds highly resistant to corrosion or damage from exposure to chemicals, making them a popular choice for jewelry as well.

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10.

What is a nickname for fullerenes?
- A.
  
  Buckybadgers
- B.
  
  Buckydomes
- C.
  
  Geodesic domes
- D.
  
  Buckyballs
Correct Answer
D. Buckyballs

Explanation
Buckyballs is a nickname for fullerenes. Fullerenes are a type of molecule composed entirely of carbon, with a unique spherical shape resembling a soccer ball. The nickname "buckyballs" was coined in honor of Buckminster Fuller, an architect known for designing geodesic domes, which have a similar structure to fullerenes. This nickname has become widely used in scientific literature and popular culture to refer to these carbon molecules.

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11.

What are nanotubes good conductors of?(Make sure the answer contains all possible conductors)
- A.
  
  Electricity
- B.
  
  Electricity and gas
- C.
  
  Heat and electricity
- D.
  
  Heat
Correct Answer
C. Heat and electricity

Explanation
Nanotubes are good conductors of both heat and electricity. These tiny cylindrical structures made of carbon atoms have unique properties that allow them to efficiently carry both forms of energy. Due to their high electrical conductivity and thermal conductivity, nanotubes are used in various applications such as electronics, energy storage, and thermal management systems. They can efficiently transfer heat and conduct electricity, making them versatile materials in the field of nanotechnology.

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12.

Why does graphite make an excellent lubricant?
- A.
  
  Because it is so slippery
- B.
  
  Because it is so hard
- C.
  
  Because is is nonreactive
- D.
  
  Because it is reactive
Correct Answer
A. Because it is so slippery

Explanation
Graphite makes an excellent lubricant because it is so slippery. The structure of graphite consists of layers of carbon atoms arranged in a hexagonal lattice, with weak forces between the layers. These weak forces allow the layers to slide over each other easily, reducing friction and providing a smooth surface for objects to move across. This property makes graphite an effective lubricant in various applications, such as in machinery and engines, where reducing friction and wear is crucial.

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13.

Few elements have the ability of carbon to
- A.
  
  Bond with itself in a couple of ways
- B.
  
  Bond with itself and other elements in so many different ways
- C.
  
  Bond with diamonds, graphites, fullerenes and nanotubes
- D.
  
  Bond with only alkaline metals
Correct Answer
B. Bond with itself and other elements in so many different ways

Explanation
Carbon has the unique ability to form strong covalent bonds with other carbon atoms, allowing it to bond with itself in multiple ways. This property is the basis for the formation of various carbon-based compounds, such as diamonds, graphites, fullerenes, and nanotubes. Additionally, carbon can also form bonds with other elements, further expanding its versatility and ability to bond in numerous different ways.

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Current Version
Feb 23, 2023

Quiz Edited by
ProProfs Editorial Team
Mar 22, 2010

Quiz Created by
Adriannesansay

Chemical Interactions - Properties Of Carbon

What is the atomic number for carbon?

What is the hardest mineral formed by carbon?

In a nanotube, carbon atoms are arranged in a

What is the lead in a pencil?

How many valence electrons do carbon atoms have?

What are the ways that bonds between atoms can be represented?Make sure the answer includes all the ways.

What is a chemical bond?

What is the melting point of diamond?

Diamonds a re a sold substance that are

What is a nickname for fullerenes?

What are nanotubes good conductors of?(Make sure the answer contains all possible conductors)

Why does graphite make an excellent lubricant?

Few elements have the ability of carbon to