Annamalai University 2010-1st Year B.Sc Chemistry - - Applied - - I - Inorganic - Question Paper

B.Sc. DEGREE EXAMINATION, 2010
( APPLIED CHEMISTRY )
( 1st YEAR )
( PART - III - A : MAIN )
( PAPER - I )
530. INORGANIC CHEMISTRY
May ] [ Time : three Hours
Maximum : 100 Marks
ans ALL ques..
All ques. carry equal marks. ( five ×20 = 100)
UNIT - I
1. (a) discuss the method of magnetic separation with a suitable example.
(b) How is chromium extracted ?
(c) discuss Alumino thermic process. ( 6+8+6)
(OR)
2. (a) discuss the process of concentration of ore by Froth flotation process.
(b) How is magnesium extracted ?
(c) What is calcination ? discuss. ( 6+8+6)
UNIT - II
3. (a) provided the decay constant as 1·28 ×10-4 y-1,
compute the time taken to decay 75% of the original sample.
(b) discuss the functioning of WILSON cloud chamber.
(c) Write a note on H- bomb. (6+8+6)
(OR)
4. (a) What is meant by linear accelerator? discuss.
(b) Write a note n / p ratio.
(c) What is radioactive series ? discuss. (7+6+7)
5. (a) What is meant by salvation ? How does it influence the strength of acids and
bases?
(b) What is steric effect ? How does it influence the strength of acids and bases ?
(c) Classify the subsequent as acid or base : NH3, AlCl3. BF3, SO3, H2S, OH- ( 6+8+6)
(OR)
6. (a) define Lewis concept of acid-base.
(b) Write a note on liquid ammonia.
(c) discuss leveling effect. (6+7+7)
UNIT - IV
7. (a) compute the CFSE of [ CoFe] 3-.
(b) explain the magnetic properties of complexes using the concept of VB theory.
(c) define Jahn-Teller effect. (6+8+6)
(OR)
8. (a) provide the formula of
(i) Pottassium tetrachloroplatinate (II).
(ii) Sodium hexaflurocobaltate (III).
(iii) Hydrogen tetrachloroaurate (III).
(b) discuss the CF splitting in tetrahedral complexes.
(c) explain the superiority of MO theory over VB theory and CFT. (6+8+6)
UNIT - V
9. (a) provide the composition and uses of any 2 alloys of copper.
(b) Classify the refractories and provide their uses.
(c) define the methods of prevention of corrosion. (6+7+7)
(OR)
10.(a) discuss the mechanism of corrosion with suitable example.
(b) provide the composition and uses of any 2 alloys of Nickel.
(c) Write a note on applications of ceramics. (8+6+6)

Earning:   Approval pending.