Name of the University : Alagappa University
Degree : B.Sc
Department : Chemistry
Subject Code/Name : Organic Chemistry I
Semester : I
Document Type : Model Question Papers
Website : alagappauniversity.ac.in
Download Model/Sample Question Paper : NOV 2010 : https://www.pdfquestion.in/uploads/alagappauniversity.ac.in/3933.-B.Sc.CHEMISTRY%20CBCS.pdf
Alagappa Organic Chemistry I
Time : 3 Hours
Maximum : 75 Marks
Part A :
Related : Alagappa University Plant Biochemistry M.SC Model Question Papers : www.pdfquestion.in/3898.html
1. What is free radical – Give an example.
2. Write IUPAC names for the following –
3. Define Hofmann rule –
4. How is westron prepared –
5. What is meant by absolute alcohol and Rectified spirit-
6. How is vinyl ether prepared –
7. How is diethyl ether prepared –
8. How is acetal prepared –
9. Chloroacetic acid is more acidic than acetic acid- Why –
10. How is maleic acid is converted into Fumaric acid
Part B : (5 × 5 = 25)
Answer all questions.
11. (a) Discuss homolytic and heterolytic fission of covalent bond ? (Or)
(b) Describe Silver salt method of determination of Molecular weight of an acid ?
12. (a) Write a note on acidic character of alkynes. (Or)
(b) Explain ozonolysis with suitable examples.
13. (a) How are the following prepared from Grignard reagent ?
(i) CH3CH2OH.
(ii) CH3COOH.
(Or)
(b) How is number of hydroxyl groups in an organic compound estimated ?
14. (a) Discuss preparation and properties of phosphorous ylide ?
(Or)
(b) Write notes on :
(i) Rosenmund reduction.
(ii) Stephens method.
15. (a) How can mono and dichloro acetic acid be prepared ? (Or)
(b) Explain the action of heat on the dicarboxylic acids.
Part C : (3 × 10 = 30)
Answer any three questions.
16. (a) An organic compound has carbon 41.35% hydrogen 6.89% nitrogen 24.12% and the rest oxygen. What is empirical formula ? If the Vapour density is 58, what is the molecular formula ?
(b) Explain the following with examples :
(i) Substitution reaction.
(ii) Addition reaction.
17. (a) Explain the Mechanism of SN1 reaction with example.
(b) Explain E1 reaction Mechanism with example.
18. (a) Explain Zeisels method of estimation of alkoxy group.
(b) Give the method of preparation of allyl alcohol, what is the reaction of allyl alcohol with ozone. Give use of it.
19. (a) Explain the effect of substituents on acidity.
(b) How are the following prepared ?
(i) acetyl acetone.
(ii) crotonic acid.
(iii) Mustard gas.
20. (a) How is Malonic ester prepared ? Write any four application of Malonic ester ?
(b) How is Lactic acid is converted to pyruvic acid ?
B.Sc. Degree Examination, November 2010 :
Second Semester : Chemistry
Inorganic Chemistry–I : (CBCS—2008 onwards)
Time : 3 Hours
Maximum : 75 Marks
Part – A (10 × 2 = 20)
Answer ALL the questions.
1. What is Photoelectric effect?
2. State Aufbau Principle.
3. What is meant by Isotope effect?
4. What are basic oxides? Give an example.
5. What is slag?
6. Write the uses of Lithium.
7. How will you prepare Hydrazine?.
8. How is Nitrosyl Chloride prepared?
9. Distinguish between Arsenites and Arsenates.
10. What is the action of nitrous acid on bismuth?
Part – B : (5 × 5 = 25)
Answer all questions.
11. a) Derive de Broglie’s equation. What are it significance.
(OR)
b) State and explain (i) Pauli’s exclusion principle
(ii) Hund’s rule.
12. a) Write short notes on ortho-hydrogen and parahydrogen.
(OR)
b) How will you estimate hydrogen peroxide?
13. a) Explain froth floatation process with neat diagram.
(OR)
b) Discuss the diagonal relationship between Lithium and Magnesium.
14. a) Discuss the physico – Chemical principles involved in the manufacture of Ammonia.
(OR)
b) Write a short note on basic Iodine.
15. a) Write the preparation and uses of
(i) Tartar emetic (ii) Sodium bismuthate.
(OR)
b) Write a note on alloys of copper.
Part – C : ( 3 × 10 = 30)
Answer any THREE questions.
16. Discuss the types of Quantum numbers.
17. Discuss the preparation, properties and uses of hydrogen peroxide.
18. a) Write notes on Aluminothermic process.
b) How is Beryllium extracted from its ore?
19. a) What are the Anomalous behaviour of fluorine?
b) Write the preparation and properties of bromic acid.
20. a) Give the preparation and uses of Antimony trioxide.
b) How is silver extracted from its ore?
B.Sc. Degree Examination, November 2010 :
Second Semester : Chemistry
Physical Chemistry—I : (CBCS—2008 onwards)
Time : 3 Hours
Maximum : 75 Marks
Part A (10 × 2 = 20)
Answer all questions.
1. Define inversion temperature.
2. State Boyle’s law.
3. Define Critical temperature.
4. What is meant by mean free path ?
5. State Trouton’s rule
6. Define Adsorbate and Adsorbent.
7. State law of Mass action.
8. Explain autocatalysis with an example.
9. What is Gold number ?
10. What is Tyndall effect ?
Part B : (5 × 5 = 25)
Answer all the questions.
11. (a) What are ideal and real gases ? How real gas deviate from ideal behaviour ? (Or)
(b) How is reduced equation of state derived from van der Waals’ equation ?
12. (a) Define RMS velocity. Calculate root mean square velocity of O2 at 27ºC. (Or)
(b) Write notes on equipartition of energy.
13. (a) Write the differences between physisorption and chemisorption. (Or)
(b) Derive Gibbs adsorption isotherm.
14. (a) Derive the relationship between Kp and Kc. (Or)
(b) Apply law of mass action to the formation of NH3.
15. (a) Write notes on :
(i) Electrophoresis.
(ii) Electroosmosis.
(Or)
(b) How will you determine Avogadro number from Brownian movement ?