Download OU B.Pharma 3-1 Year 2016 6050 S Physical Pharmacy I Question Paper

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Code No. 6050/ S

FACULTY

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B. Pharmacy 3/4 | Semester (Suppl.) Examination, April 2016

Subject : Physical Pharmacy |

Time : 3 Hrs Max. Marks: 70

Note: Answer all questions. All questions carry equal marks.

1. (a) State gas laws. Write the ideal gas law. How do you determine molecular weight of a gas using gas laws? (6)
   

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   (b) Explain phase diagram for eutectic mixture. (8)
   OR
   (c) Write notes on :
   (i) X ray diffraction (5)
   (ii) Differential scanning calorimetry (5)
   

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   (iii) Amorphous solid (4)
2. (a) State and explain first and second law of thermodynamics. (6)
   (b) Write a note on free energy function and work function and their applications. (8)
   OR
   (c) Explain the terms enthalpy, entropy, heat capacity and internal energy. (8)
   

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   (d) Write about heat of combustion and heat of neutralization. (6)
3. (a) Define and explain various methods of expression of (molarity, molality, normality, % w/w and w/v). (8)
   (b) Write a note on Sorenson’s pH scale. (6)
   OR
   (c) What are colligative properties? Explain elevation of boiling point as colligative property. How do you calculate molecular weight using the same? (7)
   

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   (d) Explain and derive an equation for ionization of weak acid. (7)
4. (a) What is buffer capacity? Write the equations for buffer capacity and maximum buffer capacity. (7)
   (b) Explain the relationship between pH and solubility. (7)
   OR
   (c) Explain white Vincent method for adjusting isotonicity. How do you render 30ml of 1% solution of procaine hydrochloride isotonic with body fluid. (sodium chloride equivalent of procaine hydrochloride is 0.21). (7)
   

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   (d) Write a note on physiological buffers. (7)
5. (a) Write about different types of catalysts and catalytic reactions. (8)
   (b) Explain the working of pH meter. (6)
   OR
   (c) Discuss the principles and working of :
   

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   (i) Hydrogen electrode (7)
   (ii) Oxidation reduction electrode (7)

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