Question

Many transition metals form interstitial compounds. The characteristics of these interstitial compounds are:

I) they have high melting points

II) they are very hard

III) they retain metallic conductivity

IV) they are chemically more reactive than the pure metals.

• A. I, II, III only correct
• B. I, III only correct
• C. II, IV only correct
• D. IV only correct

Answer 1

The correct option is A I, II, III only correct

Interstitial compounds have high melting points; are very hard and they retain metallic conductivity due to large no. of valence electron and attraction between them is high.