What are non-stoichiometric compounds ?...

What are non-stoichiometric compounds ?

Answer

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What type of non-stoichiometric point defect is responsible for the pink colour of LiCl ?

(i) What type of non-stoichiometric point defect is responsible for the pink colour of LiCI ? (ii) What type of stoichiometric defect is shown by NaCl ?

Knowledge Check

Non-stoichiometric compounds are

A

`Cu_(2)O`

B

`Cu_(2)S`

C

`FeO`

D

`Hg_(2)Ba_(2)YCaCu_(2)O_(7)`

An example of a non-stoichiometric compound is -

A

PbO

B

`NiO_(2)`

C

`Al_(2)O_(3)`

D

`Fe_(3)O_(4)`

select the correct statement about non stoichiometric compounds

A

they are called bertholide compounds

B

they do not obey the law of constant composition

C

electrical neutrality is maintained either by having extra electrons in the structure or changing the charge on some of the metal ions

D

all of the above

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An example of a non- stoichiometric compound is

Which is the set of non stoichiometric compounds

The non-stoichiometric compound Fe_0.94O is formed when some Fe^(+2) ions are replaced by Fe^(+3) ions. What is the percentage of Fe^(+3) ions in this ionic lattice ?

1.44 gram of Titanium (Ti) reacted with excess of O_(2) and produced x gram of non-stoichiometric compound Ti ._(0.44)O . The value of x will be :[Ti = 48]

The non- stoichiometric compound Fe_(0.94)O is formed when x% of Fe^(2+) ions are replaced by as many 2//3 Fe^(3+) ions The value of x is:

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