Loyola College M.Sc. Chemistry April 2003 General Chemistry For Maths & Physics Question Paper PDF Download

LOYOLA  COLLEGE (AUTONOMOUS), CHENNAI-600 034.

M.Sc. DEGREE  EXAMINATION  – chemistry

fourth  SEMESTER  – APRIL 2003

CH  4200/CHE 200 general chemistry for maths & physics

22.04.2002

9.00 – 12.00                                                                                    Max: 100 Marks

 

 

PART A                (10 ´ 2 = 20 Marks)

                                                  Answer ALL the questions.

  1. Define Lattice energy.
  2. State Kohlrausch’s law.
  3. Draw the structure of glucose.
  4. How does a – amino acid exist in acidic medium and alkaline medium?
  5. What is Bordeaux mixture? What is it used for?
  6. Mention two applications of radio isotopes in medicine.
  7. What are antipyretics? Give one example.
  8. What happens when anthracene is brominated?
  9. What are mordants?
  10. Acetic acid in benzene exists as a dimer –

           PART – B                               (8 ´ 5 = 40 Marks)

                                             Answer any EIGHT questions

  1. Write a note on carcinogenic hydrocarbon.
  2. How is congo red prepared?
  3. Explain the mode of action of sulpha drug.
  4. How is anthracene isolated from coal tar?
  5. How are the following prepared?

(i)   Malachite green     (ii) aspirin

  1. Derive Kirchoff’s equation
  2. Draw the conductometric titration curves for the following and explain.

(i)  HCl  vs NaOH                 (ii)  CH3 COOH Vs NaOH

  1. Discuss the factors affecting enzyme catalysis.
  2. Write a note on photosynthesis.
  3. Explain the features of nuclear fission reaction.
  4. Explain the construction of calomel electrode. What is the electrode reaction?

           

 

 

 

 

PART – C                                       (4 ´ 10 = 40 Marks)

                                     Answer any FOUR questions

 

  1. Construct Born Haber cycle for NaCl(s). Mention the terms involved.
  2. a) Discuss the primary structure of proteins.                                                       (5)
  3. b) Write a note on herbicides                                                                              (5)
  4. a) Explain the role of micro-nutrients in the growth of  plants                          (5)
  5. b) What is the role of enzyme in enzyme catalysis?                                           (5)
  6. How is the dissociation constant of acetic acid determined using conductivity measurement?
  7. a)  How are lanthanides separated by ion-exchange method?                             (6)
  8. Physical properties of compounds are affected by H-bonding – Explain

with two examples.                                                                                         (4)

  1. a) What are chromophores and auxochromes?  Give examples.              (5)
  2. How are the following conversions effected?

(i)pyrrole to 2-nitro pyrrole.  (ii)   Pyrrole to Pyrolle-2-aldehyde                 (5)

 

 

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