Which property from following is NOT exhibited by interstitial compound?
Which property from following is NOT exhibited by interstitial compound?
Their melting points are higher than pure metal.
Their densities are less than parent metal.
Their chemical properties are different than parent metal.
These are hard and good conductors of heat and electricity.
Solution
The compounds formed when small atoms of $\mathrm{H}, \mathrm{C}$ or $\mathrm{N}$ get trapped inside the crystal lattice of metals is known as interstitial compounds.
- The chemical properties of the parent transition metals are not altered during the formation of interstitial compounds.
- These compounds have very high melting points, higher than that of the parent transition metals.
- These compounds are very hard. The hardness of some borides is comparable to that of a diamond.
- The conductivity exhibited by them is similar to their parent metal.
- These compounds are chemically inert in nature.