Which of the following statements about the interstitial compounds is incorrect?

Options

A. They region metallic conductivity
B. They are chemically reactive
C. They are much harder than the pure metal
D. They have higher melting points than the pure metals.

Answer

B

Explanation

Interstitial compounds are obtained when small atoms like H, B, C, N, etc, fit into the interstitial space of lattice metals. These retain metallic conductivity. These resemble the parent metal in chemical properties (reactivity) but different in physical properties like hardness, melting point, etc.