Question

The wrong statement about the interstitial compounds is

• A. they retain metallic conductivity
• B. they are chemically inert
• C. they are very hard
• D. their bonds are neither ionic nor covalent
• E. their melting points are lower than those of pure metals

Answer 1

Answer: (E)

Interstitial compounds are formed by a wide range of metals with hydrogen, boron, carbon, nitrogen and other elements. The invasion of interstitial sites does not significantly alter the metal structure. It still looks like a metal, and still conducts heat and electricity. However filling some of the holes has a considerable