Question

Which of the following statements about the interstitial compounds is incorrect ?
(a) They are chemically reactive.
(b) They are much harder then the pure metal.
(c) They have higher melting points than the pure metal.
(d) They retain metallic conductivity.

Answer 1

Answer:

(a) They are chemically reactive.

Explanation:

An interstitial compound, is the compound which is formed when an atom with a small radius sits in an interstitial “hole” in the metal lattice. For example of hydrogen, carbon, boron, and nitrogen.

Statement (a) They are chemically reactive is incorrect.

Interstitial compounds are obtained when various small atoms like H, B, C resemble N and fit into the lattice of other elements. These compounds retain metallic conductivity resembling their parent metal in the chemical properties also known as reactivity, still these elements differ in physical properties such as the melting point, hardness etc.

Answer 2

Answer:

(A) is correct option I hope it will help you