Solid State

Published on December 2016 | Categories: Documents | Downloads: 46 | Comments: 0 | Views: 373
of 1
Download PDF   Embed   Report

Solid State Questions

Comments

Content

SOLID STATE
Q1. Why is there no decrease in density during Frenkel defect in a crystal ?
Q2. Name the compound in which Schottky and Frenkel defect are present together.
Q3. Why CdCl2 added to AgI increases conduction of AgI ?
Q4. What type of compounds show Schottky defect ?
Q5. Mention one property which is caused due to the presence of F-centres in a solid.
Q6. What is the effect of presence of Schottky and Frenkel defects on the neutrality of a crystalline solid ?
Q7. What type of crystal defect is produced when sodium chloride is doped with MgCl2 ?
Q8. What type of defect is produced when NaCl is doped with AlCl3, assuming AlCl3 to be an ionic compound ?
Q9. Classify the following solids on the basis of bonding consideration : CO2, MgO, Al, H2, Si, Si, Ga, Pb, AgCl.

Q10. What is the coordination number of each type of ions in a rock salt type crystal structure ?
Q11. What is the two dimensional coordination number of a molecule in square close-packed layer ?
Q12. Why is potassium chloride sometimes violet instead of pure white ?
Q13. Name an element with which silicon may be doped to give a p-type semiconductor.
Q14. What happens to a NaCl type of structure when high pressure is applied on ?
Q15. What is meant by transition temperature ?
Q16. What happens when ferromagnetic Fe3O4 is heated at 850K ?
Q17.AgI crystallizes in a cubic close packed ZnS structure.What fraction of tetrahedral sites is occupied by Ag+ ions ?
Q18. What is the C.N. of octahedral void ?
Q19. What is the formula of the crystalline compound in which of the atoms A are present at all the eight corners and
atoms B at the centers of all the six faces ?
Q20. A metallic element crystallizes into a lattice containing sequence of layers AB AB AB ……. Any packing
of spheres leaves out voids in the lattice. What percentage by volume of this lattice is empty space ?

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close