Question

Interstitial compounds are:

• A. non-stoichiometric and are ionic in nature
• B. non-stoichiometric and are covalent in nature
• C. non-stoichiometric and are neither typically ionic nor covalent in nature
• D. stoichiometric and are neither ionic nor covalent in nature

Answer 1

Answer: (C)

non-stoichiometric and are neither typically ionic nor covalent in nature

An Interstitial compounds, or interstitial alloy, is a compound formed when an atom with a small enough radius sits in an interstitial 'hole' in a metal lattice. Since there is no proper proportional bonding in every space in the crystal lattice, it is is non-stoichiometric and also neither typically ionic and covalent.