Diamond vs Graphite Flashcard

Front

What type of bond is found in both diamond and graphite?

Back

Covalent

Answer explanation

Both diamond and graphite have a covalent bond, where atoms share electrons to form strong bonds.

Front

Which property is unique to diamond when compared to graphite?

Back

Hardness

Answer explanation

Diamond is unique compared to graphite due to its hardness, which is a distinguishing property between the two forms of carbon.

Front

Graphite is a good conductor of electricity due to the presence of:

Back

Delocalized electrons

Answer explanation

Graphite is a good conductor of electricity due to the presence of delocalized electrons, which can move freely throughout the material allowing for the flow of electric current.

Front

Which allotrope of carbon is used as a lubricant?

Back

Graphite

Answer explanation

Graphite is the allotrope of carbon used as a lubricant due to its slippery layers that easily slide over each other.

Front

Diamond and graphite are both allotropes of carbon. What does this mean?

Back

They have the same chemical composition but different physical forms.

Answer explanation

Diamond and graphite are both allotropes of carbon, meaning they have the same chemical composition but different physical forms.

Front

Why does diamond have a high melting point?

Back

Because of its strong covalent bonds

Answer explanation

Diamond has a high melting point due to its strong covalent bonds.

Front

Which of the following is true about the structure of graphite? Options: It consists of layers that are free to slide over each other., It has a tetrahedral structure., It is composed of hexagonal rings in a 3D network., It has a cubic structure.

Back

It consists of layers that are free to slide over each other.

Answer explanation

The correct choice is that graphite consists of layers that are free to slide over each other, allowing it to have unique properties.

Front

What makes diamond the hardest natural substance?

Back

Its tetrahedral arrangement of carbon atoms

Answer explanation

Diamond is the hardest natural substance due to its tetrahedral arrangement of carbon atoms, which creates strong covalent bonds.

Front

Graphite can be used as electrodes in electrolysis because:

Back

It does not react with electrolytes and it is a good conductor of electricity.

Answer explanation

Graphite is a good conductor of electricity and does not react with electrolytes, making it suitable for use as electrodes in electrolysis. Therefore, both options B and C are correct.

Front

Which of the following statements is false?
Diamond is an excellent thermal conductor.
Graphite is opaque and black.
Diamond is an excellent electrical conductor.
Graphite is soft and slippery.

Back

Diamond is an excellent electrical conductor.

Answer explanation

The statement 'Diamond is an excellent electrical conductor' is false because diamond is actually an insulator when it comes to electricity.