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STATEMENT -1 : Due to Frenkel defect th...

STATEMENT -1 : Due to Frenkel defect there is no effect on density of a solid.
STATEMENT -2 : Ions shift from lattice site in Frenkel defect .

A

decreases

B

increases

C

does not change

D

changes

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The·density remains same in Frenkel defect.
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Why Frenkel defect does not change the density of AgCl crystal ?

Ionic lattic has two major points defects ,(1) Schottky (2) Frenkel defects . Schottkly defects occurs due to the cations - anion pair's missing from the lattice sites . Frenkel defects occurs when smaller ion leaves from its lattic site and fits into an intersitial space.which defect decrease density of the crystal ?

Ionic lattic has two major points defects ,(1) Schottky (2) Frenkel defects . Schottkly defects occurs due to the cations - anion pair's missing from the lattice sites . Frenkel defects occurs levels its lattic site and fits into an intersitial space. The neturaity of the crystal is benig maintained and we considerd all losses from interstitical positions. Structure shown here represents :

Ionic lattic has two major points defects ,(1) Schottky (2) Frenkel defects . Schottkly defects occurs due to the cations - anion pair's missing from the lattice sites . Frenkel defects occurs levels its lattic site and fits into an intersitial space. The neturaity of the crystal is benig maintained and we considerd all losses from interstitical positions. Structure shown here represents :

Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT -1: If the activation energy of reaction is zero, temperature will have no effect on the rate constant. STATEMENT-2: Lower the activation energy faster is the raction.

STATEMENT-1 : Wet air is heavier than dry air. STATEMENT-2 : The density of dry air is less than the density of water at 1 atm and 273K.

Statement : Due to Frenkel defect the density of the crystalline solid remains same. Explanation : In Frenkel defect, no cations or anions leave the lattice.

The correct statement regarding defects in solids is

STATEMENT - 1 : When dried fruits and vegetables are placed in water, they slowly get swollen. STATEMENT - 2 : It happens due to the phenomenon of osmosis.

What is the effect of Frenkel stuctural defect on the electrical conductivity of a crystalline solid?

OMEGA PUBLICATION-THE SOLID STATE-MULTIPLE CHOICE QUESTIONS
  1. Define radius ratio what is the value of radius ratio for octahedral g...

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  2. Which of the following is Bragg's equation?

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  3. STATEMENT -1 : Due to Frenkel defect there is no effect on density ...

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  4. If we mix a pentavalent impurity in a crystal lattice of germanium, wh...

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  5. What are the consequences of Schottky defects ?

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  6. Which of the following is covalent solid?

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  7. In a solid lattice the cation has left a lattice site and is located a...

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  8. Which of the following is a pseudo solid?

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  9. Missing of one positive ion and one negative ion from the crystal latt...

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  10. If edge of a bcc crystal of an element is a cm, number, then density o...

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  11. Amorphous solids

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  12. The number of atoms present in a fcc unit cell is

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  13. If the alignment of mangnetic moments in a substance is 'in-a compensa...

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  14. The number of atoms in bcc arrangement is

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  15. The fraction of volume occupied by atoms in a primitive cubic unit cel...

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  16. Volume occupied in f. c. c. is :

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  17. The conductivity of metals increases with:

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  18. What is radius ratio for the co-ordination number 8

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  19. Close packing is maximum in the crystal which is

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  20. In a solid lattice the cation has left a lattice site and is located a...

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