Download OU B.Pharma 2-1 Year 2017 1068 Pharmaceutical Analysis I Question Paper

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FACULTY OF PHARMACY

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B. Pharmacy 2/4 I- Semester (Supplementary) Examination, November 2017

Time : 3 hours Max. Marks : 70

Subject : Pharmaceutical Analysis - I (Chemical Analysis)

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

1. Explain the concept of error, write the sources of errors and their rectification in pharmaceutical analysis. 12

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   Define Molarity and Molality. 2

   OR

   Discuss the significant figures and rules for computation. 8

   Define primary standard. Write the ideal requirements of primary standard. 6

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2. Write a note on the following :

   i) Solubility Product ii) Common-ion effect 4+4

   Write an account on neutralization indicators. 6

   OR

   Define buffer solution, buffer action and buffer capacity. Discuss the role of buffers in pharmaceutical analysis. 3+5

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   Discuss the theories of acids and bases. 6

   Write a note on redox indicators. 7

3. Explain the co-precipitation and post precipitation. 7

   OR

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   Write the principle and procedure of iodometric assay of any one official compound. 8

   Explain the terms precipitation coagulation and digestion. 6

4. Write the procedure for preparation and standardization of 0.01 M EDTA solution. 8

   Write a note on argentometric titrations. 6

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   OR

   Describe the method of preparation and standardization of 0.1 N HClO₄. 8

   Write note on PM indicators. 6

5. What is avogadro’s number? How the moles of elements and compounds are calculated? 6

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   Balance the following equations. 8

   1. CuSO₄+ KI = CuI₂ + K₂SO₄
   2. NaOH + H₂SO₄ ? Na₂SO₄ + H₂0
   3. Na₂SO₃ + HCl ? NaCl + H₂SO₃
   4. C₆H₁₂O₆ ? C₂H₅OH + CO₂

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   OR

   Define empirical formula, molecular formula, theoretical yield and percentage yield. 8

6. What is PH? Calculate the pH of 0.1N solution of ammonia (PK_b = 4.75). 6

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