Download GTU B.Pharma 2019 Winter 2nd Sem 2220002 Pharmaceutical Chemistry Ii (Physical Chemistry) Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER- 2 EXAMINATION - WINTER -2019
Subject Code: 2220002 Date: 18-12-2019
Subject Name: Pharmaceutical Chemistry-II (Physical Chemistry)
Time: 10:30 AM TO 01:30 PM Total Marks: 80

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Instructions:

1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1

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1. (a) Explain the terms surface tension. Give unit, application and methods for determination of surface tension. (06)
2. (b) What is viscosity? Write a note on methods for measurement of viscosity. (05)
3. (c) Give difference of followings. (05)
   1. (1) Colligative properties and constitutive properties,
   2. (i1) Adsorption and absorption

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Q.2

1. (a) What is solution? Described difference between ideal solution and real solution and described debye-huckel theory for solution. (06)
2. (b) State and explain raoult’s law of dilute solution. (05)
3. (c) Define the terms: (1) Conductance, (ii) equivalent conductance, (ii1) Partition co-efficient, (iv) dipole moment, (v) optical rotation (05)

Q.3

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1. (a) What is enthalpy? Derive chemical reaction of enthalpy. (06)
2. (b) Define thermodynamics and described the first law of thermodynamics. (05)
3. (c) What is the basic principle of Joule -~Thomson effect? (05)

Q.4

1. (a) Define adsorption and described application of adsorption in pharmacy. (06)

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2. (b) Derived and described Langmuir Adsorption isotherms. (05)
3. (c) Explain: Fluorescence;Phosphorescence and Chemiluminescence. (05)

Q.5

1. (a) State and explain Lambert-beer law for photochemistry. (06)
2. (b) Draw and explain the Jablonski diagram. (05)

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3. (c) Witch processes are takes place when the activated molecule returns to the ground state by eliminating energy at each level. (05)

Q.6

1. (a) Explain order of reaction and pseudo order of reaction. Derive integrated rate equation for first order reaction. (06)
2. (b) Define half-life of a reaction. Prove that half-life of first order reaction is independent of the initial concentration. (05)
3. (c) Write note on Acid-base Enzyme Catalysis (05)

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Q.7

1. (a) Differentiate the following. (06)
   1. (1)Homocatalysis & Heterocatalysis,
   2. (i1) Molecularity of a reaction and order of a reaction,
   3. (ii1) Chemisorptions and physical adsorption.

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2. (b) What is Phase-rule? Describe phase diagram of water. (05)
3. (c) Described One and two compartment systems. (05)