1.

What are interstitial compounds? Why do these compounds have higher melting points than corresponding pure metals?

Answer»

Solution :(1)The interstitial compounds of the transition metals are those
which are formed when small atoms like H, C or N are trapped INSIDE
the interstitial vacant spaces in the CRYSTAL LATTICE of the metals.
(2) Since metal-non-metal bonds in the interstitial compounds are
stronger than metal-metal bonds in pure metals, the compounds have
very high MELTING points, higher than the pure metals.


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