Question

Interstitial compounds are formed when small atoms are dropped under the curved lattice of metals. Whether the following is not the characteristics property of interstitial compounds?
[1 mark]

• A. They have higher melting points than the pure metals
• B. They are very hard
• C. They retain metallic conductivity
• D. They are chemically very reactive

Answer 1

The correct option is D They are chemically very reactive

Interestitial compounds are usually non-stoichiometric and are neither typically ionic nor covalent. Hence, interstitial compounds are chemically inert.