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

Options

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

Answer

A

Explanation

They are chemically inert because all the (n-1) d electrons are utilized to form bonds with the atoms of nonmetals which are trapped within the voids or interstices of crystal lattice.