B.Sc I Year Model Question Papers Part – I Chemistry 2017 ADIKAVI NANNAYA UNIVERSITY

Chemistry

Paper 1: Inorganic, Organic, Physical and General Chemistry 

 Time: 3 Hours                                                              Max Marks: 80

 Answer ALL questions 4 x 15 =60

SECTION-A

1.a) What are Silicones? How they are classified? Discuss their preparation and uses?

                                                                    (or)

 b) What are Grignard Reagents? Discuss their preparation and synthetic applications

2. a) i) Explain the types of bond fission with examples

ii) Explain Markownikoff’s rule with suitable example.

                                                                      (or)

 b) i) Explain the mechanism of electrophillic substitution reactions in Benzene.
   
  ii) Give the mechanism for Friedal Crafts alkylation reaction with an example.

3. a) i) How do real gases deviate from ideal behavior?

       ii) Derive Vander Waal’s equation of State.

                                                                     (or)

     b). i) Explain Phenol-Water system.

          ii) Derive Langmuir Adsorption isotherm

4. a) What are bonding and anti bonding molecular orbitals? Explain paramagnetic character of O2 with the help of M.O. theory

   b) i) Explain the following:  Co-precipitation and Post precipitation

       ii) Write a note on Precision and Accuracy.

SECTION – B

Answer any FOUR questions                                                                4 x 5 = 20

5. Discuss the diagonal relationships between Lithium and Magnesium.

6. Write the preparation of Hydrazine and Hydroxyl Amine

 7. Write notes on Baeyer’s Strain theory.

8. Explain the stability of Carbonium ions.

9. Explain Joul-Thomson effect.

10. State and Explain Nernst distribution law.

11. Explain the significance of Quantum Numbers.

12. Write Schrodinger wave equation and discuss the significance of Ψ.