Tamil Nadu Board of Secondary EducationHSC Science Class 12

What are interstitial compounds? - Chemistry

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Answer in Brief

What are interstitial compounds?

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Solution

1. An interstitial compound or alloy is a compound that is formed when small atoms like hydrogen, boron, carbon or nitrogen are trapped in the interstitial holes in a metal lattice.

2. They are usually non-stoichiometric compounds.

3. Transition metals form a number of interstitial compounds such as TiC, ZrH1.92, Mn4N, etc.

4. The elements that occupy the metal lattice provide them new properties.

  • They are hard and show electrical and thermal conductivity.
  • They have high melting points higher than those of pure metals.
  • Transition metal hydrides are used as powerful reducing agents.
  • Metallic carbides are chemically inert.
Concept: General Trend in Properties
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Chapter 4: Transition and Inner Transition Elements - Evaluation [Page 128]

APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 12th Chemistry Volume 1 and 2 Answers Guide
Chapter 4 Transition and Inner Transition Elements
Evaluation | Q 9. | Page 128
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