Solid State Class 12 MCQs Questions with Answers

1.  NaCl typecrystal (with coordination no. 6 : 6) can be converted into CsCl type crystal (with coordination no. 8 : 8) by applying

2. In Zinc blende structure :

3. The fraction of the total volume occupied by the atoms present in a simple cube is:

4. An element with atomic mass 100 has a bcc structure and edge length 400 pm. The density of element is:

5. An element with atomic mass 100 has a bcc structure and edge length 400 pm. The density of element is:

6. Alkali halides do not show Frenkel defect because:

7.  Edge length of unit cell of chromium metal is 287 pm with bcc arrangement. The atomic radius is of the order:

8. Which of the following is not a crystalline solid?

9. Which of the following fee structure contains cations in alternate tetrahedral voids?

10. If Z is the number of atoms in the unit cell that represents the closest packing sequence….ABC ABC….the number of tetrahedral voids in the unit cell is equal to

11. In a Schottky defect:

12. A crystalline solid :

13.  In a trigonal crystal:

14. A mixed oxide has ccp arrangement in which the cations ‘X’ occupy 1/3rd of octahedral voids and the cations ‘Y’ occupy 1/3rd of tetrahedral voids.The formula of oxide is :

15. The point defect noticed when AgCl is doped with CdCl2 is :

16. A unit cell of BaCl2 (fluorite structure) is made up of

17. Which of the following transition metal oxides is not an insulator?

18. An example of body centered cube is

19. How many lithium atoms are present in a unit cell with edge length 3.5 Å and density 0.53 g cm-3? (Atomic mass of Li = 6.94)

20. The number of octahedral sites per sphere in fee structure is