M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Inorganic Chemistry
CHEMISTRY OF INORGANIC MATERIALS
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory Attempt any two questions from section II and section III. Answer to all questions should be written in same answer book. All questions carry equal mark. Figures to right indicate full marks. Use of log table calculator is allowed.
Section I
Q.1
Answer the following:
14
Why Frenkel defects is not found in pure alkali metal halides.
Write the Full Form of MASER.
How will estimate the thickness of thin films.
Give a name of soft magnetic materials.
What is unit of specific resistance?
What is a ceramic material?
What is the full form of FE-SEM?
What is the difference between sol-gel and combustion method?
Write the equation Arrhenius for calculation of activation energy.
Define plane defects.
What is the SI unit of magnetic Flux density?
What are ferrite materials?
What kind of the binding force exists in ionic solids?
What is the top-down method of synthesis of nanomaterials?
Section II
Q.2
Explain conductor, insulator and semiconductor with diagram.
07
Discuss ceramic method for the synthesis of inorganic materials.
07
Q.3
Discuss the applications of organic semiconductors.
07
Explain structure and properties of Perovskite.
07
Q.4
Discuss Langevin's theory of diamagnetism.
07
What are the challenges and opportunities of nanotechnology?
07
Section III
Q.5
Discuss type I II superconductors.
05
Give applications of magnetic materials.
05
Explain properties of refractory materials.
04
Q.6
Draw magnetic hysteresis loop and explain their significance.
05
Enlist the applications of ionic conductor.
05
Explain Schottky defect with suitable examples.
04
Q.7
Write a note on any Three of the following.
14
Theromodynamics of non-stoichiometry phases.
Clay products
Nanoclusters
Imperfect crystals