Structure and bonding of carbon

Medium
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Question 1
Medium

Carbon and its Structures

This question is about carbon and its various structures.

a.

Buckminsterfullerene was the first fullerene to be discovered.

What shape is a buckminsterfullerene molecule?

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b.

Give one use of buckminsterfullerene.

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c.

Methane is a simple compound of carbon and hydrogen. Below is a representation of the dot-and-cross diagram of a methane molecule:

Dot-and-cross diagram of a methane molecule

Complete the displayed formula of methane by drawing lines to represent the four single covalent bonds around the carbon atom:

H \quad\quad\text{H}\quad\quad H HCH \text{H}\quad\text{C}\quad\text{H} HCH H \quad\quad\text{H}\quad\quad H
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d.

Determine the molecular formula of methane.

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e.

Methane is a gas at room temperature and has a low boiling point of −161.5 ∘C-161.5\ ^\circ\text{C}−161.5 ∘C. Why does methane have a low boiling point?

Select one option:

  • The covalent bonds are strong.
  • The covalent bonds are weak.
  • The intermolecular forces are strong.
  • The intermolecular forces are weak.
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f.

Graphene is a single layer of graphite. Explain why graphene:

  • is a good electrical conductor,
  • has a very high melting point.

You should answer in terms of structure and bonding.

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Structure and bonding of carbon Questions

  1. GCSE
  2. /Chemistry
  3. /Structure and bonding of carbon