The giant covalent structure used for reinforcing tennis rackets (in typical GCSE/IGCSE-style questions) is graphite , specifically in the form of carbon nanotubes made from graphite layers.

Quick Scoop

  • In exam questions, the expected one-word answer is graphite.
  • The idea is that graphite can form very strong carbon nanotubes, which are used to reinforce materials such as tennis rackets , making them stronger and lighter.

Why graphite (in this context)?

  • Graphite is a giant covalent structure made of carbon atoms in layers, with very strong covalent bonds within each layer.
  • From these layers, carbon nanotubes can be made; these nanotubes are extremely strong and low density, so they are ideal for reinforcing sports equipment like tennis rackets.

In real commercial rackets today, manufacturers usually talk about “carbon fibre” or “graphite composite” frames, which are based on carbon materials derived from graphite chemistry.

TL;DR: For your chemistry question “which giant covalent structure is used for reinforcing tennis rackets?”, write: graphite.

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