318820
The correct statement regarding defects in solids is
1 Frenkel defect is favoured by a very small difference in the size of cation and anion.
2 Frenkel defect is not a dislocation defect.
3 Trapping of in lattice leads to the formation of F-centre.
4 Schottky defects have no effect on the physical properties of solid.
Explanation:
Trapping of in lattice leads to the formation of F-centre.
CHXII01:THE SOLID STATE
318821
What type of non-stoichiometric defect is present in ?
1 Metal excess defect
2 Metal deficiency defect
3 Impurity defect
4 Schottky defect
Explanation:
Metal deficiency defect is present in the sample because iron is less in amount than that is required for stoichiometric composition.
CHXII01:THE SOLID STATE
318822
The appearance of colour in solid alkali metal halides is generally due to :
1 Schottky defect
2 F - centre
3 Interstitial position
4 Frenkel defect
Explanation:
Conceptual Questions
JEE - 2014
CHXII01:THE SOLID STATE
318823
Statement A : On heating and turn yellow. Statement B : Colour of crystals due to metal excess defect due to anionic vacancies.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
On heating both and turn yellow. It happens due to metal excess defect due to anionic vacancies in case of and due to the presence of extra cations at interstitial sites in case of .
318820
The correct statement regarding defects in solids is
1 Frenkel defect is favoured by a very small difference in the size of cation and anion.
2 Frenkel defect is not a dislocation defect.
3 Trapping of in lattice leads to the formation of F-centre.
4 Schottky defects have no effect on the physical properties of solid.
Explanation:
Trapping of in lattice leads to the formation of F-centre.
CHXII01:THE SOLID STATE
318821
What type of non-stoichiometric defect is present in ?
1 Metal excess defect
2 Metal deficiency defect
3 Impurity defect
4 Schottky defect
Explanation:
Metal deficiency defect is present in the sample because iron is less in amount than that is required for stoichiometric composition.
CHXII01:THE SOLID STATE
318822
The appearance of colour in solid alkali metal halides is generally due to :
1 Schottky defect
2 F - centre
3 Interstitial position
4 Frenkel defect
Explanation:
Conceptual Questions
JEE - 2014
CHXII01:THE SOLID STATE
318823
Statement A : On heating and turn yellow. Statement B : Colour of crystals due to metal excess defect due to anionic vacancies.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
On heating both and turn yellow. It happens due to metal excess defect due to anionic vacancies in case of and due to the presence of extra cations at interstitial sites in case of .
318820
The correct statement regarding defects in solids is
1 Frenkel defect is favoured by a very small difference in the size of cation and anion.
2 Frenkel defect is not a dislocation defect.
3 Trapping of in lattice leads to the formation of F-centre.
4 Schottky defects have no effect on the physical properties of solid.
Explanation:
Trapping of in lattice leads to the formation of F-centre.
CHXII01:THE SOLID STATE
318821
What type of non-stoichiometric defect is present in ?
1 Metal excess defect
2 Metal deficiency defect
3 Impurity defect
4 Schottky defect
Explanation:
Metal deficiency defect is present in the sample because iron is less in amount than that is required for stoichiometric composition.
CHXII01:THE SOLID STATE
318822
The appearance of colour in solid alkali metal halides is generally due to :
1 Schottky defect
2 F - centre
3 Interstitial position
4 Frenkel defect
Explanation:
Conceptual Questions
JEE - 2014
CHXII01:THE SOLID STATE
318823
Statement A : On heating and turn yellow. Statement B : Colour of crystals due to metal excess defect due to anionic vacancies.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
On heating both and turn yellow. It happens due to metal excess defect due to anionic vacancies in case of and due to the presence of extra cations at interstitial sites in case of .
318820
The correct statement regarding defects in solids is
1 Frenkel defect is favoured by a very small difference in the size of cation and anion.
2 Frenkel defect is not a dislocation defect.
3 Trapping of in lattice leads to the formation of F-centre.
4 Schottky defects have no effect on the physical properties of solid.
Explanation:
Trapping of in lattice leads to the formation of F-centre.
CHXII01:THE SOLID STATE
318821
What type of non-stoichiometric defect is present in ?
1 Metal excess defect
2 Metal deficiency defect
3 Impurity defect
4 Schottky defect
Explanation:
Metal deficiency defect is present in the sample because iron is less in amount than that is required for stoichiometric composition.
CHXII01:THE SOLID STATE
318822
The appearance of colour in solid alkali metal halides is generally due to :
1 Schottky defect
2 F - centre
3 Interstitial position
4 Frenkel defect
Explanation:
Conceptual Questions
JEE - 2014
CHXII01:THE SOLID STATE
318823
Statement A : On heating and turn yellow. Statement B : Colour of crystals due to metal excess defect due to anionic vacancies.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
On heating both and turn yellow. It happens due to metal excess defect due to anionic vacancies in case of and due to the presence of extra cations at interstitial sites in case of .
