MCQ
Which of the following is not an interstitial compound?
- ATiC
- BMoC
- CFe0.82O
- DCr2O3
✓
Answer
- Cr2O3
Explanation:
TiC, MoC and Fe0.82O are interstitial compounds. However, Cr2O3 is not an interstitial compound. Interstitial compounds are those compounds which are formed when small atoms like H, C or N are trapped inside the interstitial spaces in the crystal lattice of metals. They are usually non-stoichiometric in nature and cannot be represented by a definite composition and are neither typically ionic nor covalent.
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