Interstitial compounds are formed

Question:

Interstitial compounds are formed when small atoms are trapped inside the

crystal lattice of metals. Which of the following is not the characteristic property

of interstitial compounds?

(i) They have high melting points in comparison to pure metals.

(ii) They are very hard.

(iii) They retain metallic conductivity.

(iv) They are chemically very reactive.

Solution:

Option (iv) They are chemically very reactive is the answer

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