Mention the type of compounds formed when small atoms like $H, C and N$ get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.

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Solution

When small atoms like $H, C and N$ get trapped inside the crystal lattice of transition metals then the formation of interstitial compounds takes place.

Interstitial compounds are non-stoichiometric compounds.

Example: Stainless steel, $T i C$ etc

Physical and chemical characteristics of interstitial compounds:

Interstitial compounds are closely packed thus, they possess high melting points as compared to other pure metals.

Interstitial compounds are very hard because the voids of such compounds are occupied by other atoms.

Interstitial compounds maintain their metallic conductivity.

Interstitial compounds are chemically inert.

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Similar questions

Many transition metals form interstitial compounds. The characteristics of these interstitial compounds are:

I) they have high melting points

II) they are very hard

III) they retain metallic conductivity

IV) they are chemically more reactive than the pure metals.

Explain giving reasons :
Transition metals and many of their compounds show paramagnetic behaviour.

The enthalpies of atomisation of the transition metals are high.

The transition metals generally form coloured compounds.

Transition metals and their many compounds act as good catalyst.

Explain giving reasons:

(i) Transition metals and many of their compounds show paramagnetic

behaviour.

(ii) The enthalpies of atomisation of the transition metals are high.

(iii) The transition metals generally form coloured compounds.

(iv) Transition metals and their many compounds act as good catalyst.

In a compound, nitrogen atoms (N) make cubic close packed lattic and metal atoms (M) occupy one-third of the tetrahedral voids present. Determine the formula of the compound formed by M and N ?

Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not characteristic property of interstitial compounds?

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MP, BP and Density (Group 1)

Standard XII Chemistry

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Mention the type of compounds formed when small atoms like H,C and N get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.

Mention the type of compounds formed when small atoms like $H, C and N$ get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.