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Question

When is an interstitial compound formed?


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Solution

Interstitial compound:

  • Interstitial compounds are those generated when tiny atoms of H,C,orN become entrapped within the crystal lattice of a metal.
  • The transition metals form a variety of interstitial compounds.
  • Interstitial compounds are formed when transition metals interact with elements such as hydrogen, carbon, nitrogen, boron, and others.

Interstitial compound properties:

  • These compounds have extremely high melting points, much higher than the constituent transition metals.
  • These compounds are extremely tough. Some borides have hardnesses comparable to diamonds.
  • Their conductivity is comparable to that of their parent metal.
  • In nature, these substances are chemically inert.

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