1. The edge length of fee cell is 508 pm. If radius of cation is 110 pm, the radius of anion is

2. The density of a metal which crystallises in bcc lattice with unit cell edge length 300 pm and molar mass 50 g mol

3. How many lithium atoms are present in a unit cell with edge length 3.5 Å and density 0.53 g cm

4. The distance between Na

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

6. Fe

7. Which of the following crystals does not exhibit Frenkel defect?

8. What type of stoichiometric defect is shown by ZnS?

9. Silver halides generally show

10. Which of the following will have metal deficiency defect?