Allotropes of Matter
Chemistry ⇒ States of Matter
Allotropes of Matter starts at 9 and continues till grade 12.
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See sample questions for grade 12
Describe the arrangement of atoms in graphite and explain how this affects its physical properties.
Describe the process by which white phosphorus can be converted to red phosphorus.
Describe the structural difference between diamond and graphite.
Describe the structure of buckminsterfullerene (C60).
Explain why diamond is transparent while graphite is opaque.
Explain why graphite can conduct electricity but diamond cannot.
Explain why ozone is less stable than dioxygen.
Explain why rhombic sulfur is more stable than monoclinic sulfur at room temperature.
Explain why white phosphorus must be stored under water.
Name two allotropes of phosphorus.
Which allotrope of carbon is known for its use in nanotechnology and drug delivery systems?
Which allotrope of carbon is used as a lubricant and why?
Compare and contrast the electrical conductivity and hardness of the three main allotropes of carbon: diamond, graphite, and buckminsterfullerene. Explain the structural reasons for these differences.
Consider the following scenario: A chemist is attempting to synthesize a new allotrope of carbon with both high electrical conductivity and high hardness. Based on your knowledge of existing carbon allotropes, discuss the challenges the chemist might face and suggest possible structural features that could achieve this goal.
Describe how the concept of hybridization explains the difference in bonding and geometry between diamond and graphite.
Explain, with reference to molecular structure, why ozone (O3) is a more powerful oxidizing agent than dioxygen (O2).
