Download OU B.Sc 2019 June-July 6th and 7th Semester 3300 Chemistry Question Paper

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Code No. 3300/E

FACULTY OF SCIENCE

B.Sc. VI-Semester (CBCS) Examination, May / June 2019

Subject : Chemistry

Paper - VII (DSC)

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Time : 3 Hours Max. Marks: 60

PART - A (5 x 3 = 15 Marks)

(Short Answer Type)

Note : Answer any FIVE of the following questions.

1. Define Labile and Inert complexes. Give one example each.

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2. Write the biological significance of Na and Mg.
3. Give Lobry de bruyn Van Ekenstein rearrangement.
4. What is meant by Isoelectric point? Give suitable example.
5. Derive Cp— Cv=R.
6. Write about various state functions and path functions.

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7. What are equivalent and nonequivalent protons?
8. Write about the entropy change for spontaneous, Non spontaneous and equilibrium processes.

PART — B (45 Marks)

(Essay Answer Type)

Note: Answer ALL from the questions.

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1. (a) Explain SN¹ reactions of octahedral complexes.

   OR

   (b) Explain Pearson’s classification of Hard and Soft Acids and Bases.

2. (a) Explain the following:

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   1. Mutarotation
   2. Anomers
   3. Epimers

   OR

   (b) How are Alanine and Valine prepared from Malonic ester synthesis?

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3. (a) Explain Carnot cycle. Derive an expression for the efficiency of reversible heat engine working between T₂ and T₁ temperatures.

   OR

   (b) State and explain I law of thermodynamics.

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4. (a) Explain the basic principles of mass spectroscopy.

   OR

   (b) Derive Gibbs-Helmholtz equation.

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