Single Choice

Which of the following statements about the interstitial compounds is incorrect?

AThey retain metallic conductivity
BThey are chemically reactive
Correct Answer
CThey are much harder than the pure metal
DThey have higher melting points than the pure metal

Solution

Hint: It can be helpful to think of interstitial compounds as compounds that are the same as the parent metal but just have some added atoms inserted in the holes.

Interstitial compounds are those which are formed when small atoms like $$H, C, N, etc.$$ are trapped inside the crystal lattices of metals. They are usually non-stoichiometric and are neither typically ionic nor covalent. Their properties are as follows:

A) They retain metallic conductivity.
B) They are chemically inert.
C) They are much harder than the parent metal.
D) They have melting points higher than the pure metal.

Final answer: Option $$B$$.

SIMILAR QUESTIONS

d - block and f - block Elements

Which forms interstitial compounds?

d - block and f - block Elements

Which of the following statement is not correct?

d - block and f - block Elements

What are interstitial compounds? Why are such compounds well known for transition metals?

d - block and f - block Elements

Interstitial compounds are:

d - block and f - block Elements

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?

d - block and f - block Elements

In salts of polyatomic anion, as polarising power of cation increases, thermal stability of the salt decreases and decomposed species may further undergo redox reaction. Water soluble salt (x) was heated into three products A,B and C and B and C are two different paramagnetic gases. A is red in hot condition, then salt (x) is

d - block and f - block Elements

Mercury (II) chloride solution on reaction with gaseous ammonia forms:

d - block and f - block Elements

When ammonia is added to a cupric salt solution, the deep blue colour is observed it is due to the formation of :

d - block and f - block Elements

Many transition metals form interstitial compounds. The characteristics of these interstitial compounds are: (I) They have high melting points, higher than those of pure metals (II) They are very hard (III) They retain metallic conductivity (IV) They are chemically more reactive than the pure metals

d - block and f - block Elements

Which of the following double salt does not exist?

Contact Details