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Pune University - FY BSc INDUSTRIAL CHEMISTRY - I, April 2010 (Old course)

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Total No. of Questions : 10] [Total No. of Pages : 3 P248 [3717] - 80 F.Y. B.Sc. INDUSTRIAL CHEMISTRY - I (Theory Paper - I) (Vocational Course) (2004 Old Pattern) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) All questions carry equal marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. 7) All questions are compulsory. SECTION - I Q1) Answer the following : a) Define catalyst. b) Define Adsorption. c) What is coagulation. d) [8] Define active centers. Q2) Answer any two of the following : [8] a) Differentiate between homogeneous and heterogeneous catalysis. b) Explain Autocatalysis. c) Write two characterstics of catalytic reaction. P.T.O. Q3) Answer any two of the following : [8] a) What are gels? How they are classified? Explain Phenomenon of Tixotrophy. b) Explain adsorption indicators. c) Derive expression for Langumuir adsorption isotherm. Q4) Answer any one of the following : [8] a) Explain in detail mechanism of enzyme catalysis. Give two examples of enzyme catalysis. b) Explain Electrophorasis and Electro Osmosis. Q5) Write short note on any two : a) Chemisorption. b) Emulsion. c) Pramoters. d) [8] Negative catalysis. SECTION - II Q6) Define and explain following terms : a) Limiting reactants. b) Derived quantities. c) Heat capacity. d) [8] Kinetic energy. Q7) Answer any two of the following : [8] a) Explain the material balance in distillation operation. b) Describe the different types of latent heats involved in phase changes. c) Define standard heat of reaction. How it is calculated from heats of combustion. [3717]-80 2 Q8) Write short notes on any two of the following : a) Average molecular weight of gas mixture. b) c) [8] Excess reactant and percent excess. Yield and selectivity. Q9) Answer any one of the following : a) State and explain Henry s Law and Raoult s Law. b) [8] State and explain Amagats Law. Q10)Solve any two of the following : a) [8] Calculate standard heat of reaction in the following reaction 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) Given Ho cal / gmole f NH3(g) = 11020 NO(g) = 21570 H2O(g) = 57796. b) 98 gms of H2SO4 is dissolved in water to prepare 1 litre solution. Find normality and molarity of solution. c) Calculate volume occupied by 20kg of chlorine at a pressure 745mm Hg and 25 C. vvvv [3717]-80 3

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Additional Info : F.Y. B.Sc. INDUSTRIAL CHEMISTRY (Theory Paper - I) (Vocational Course) (2004 Old Pattern), Pune University
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