FACULTY OF PHARMACY
B. Pharmacy II Year I Semester (Suppl.) Examination, April 2016
Subject: Pharmaceutical Analysis I
(Chemical Analysis)
Time: 3 Hours Max.Marks: 70
Note: Answer all questions. All questions carry equal marks.
1 Explain about the calibration and its importance in analysis. 8
Write a note on rejection of doubtful value. 6
OR
Write a note on significant figures and rules for computation. 8
Describe different methods of expressing concentration of standard solution. 6
2 Define the term pH. Explain about the hydrolysis of salts. 8
Explain law of mass action and its significance. 6
OR
Explain the neutralization curves for a titration between strong aid and strong base.
Comment upon the indicators used. 10
Describe the principle and procedure involved in standardization of 0.1 N HCl. 4
3 Discuss the general principles of gravimetric analysis. 8
Write an account on the Oxidation Reduction titrations and their applications in
analysis. 6
OR
Discuss about various types of redox indicators with examples. 8
Write a note on organic precipitants used in gravimetry. 6
4 Discuss the principles of gas analysis. 6
Write the principle of complexometric titration. Describe the principle and procedure
involved in assay of magnesium sulphate. 8
OR
Explain the preparation and standardization of 0.1 M EDTA solution. 6
Write the principle involved in non-aqueous titration. Explain with examples, what
type of pharmaceutical compounds are assayed by non-aqueous titration. 8
5 What is avagadro's number and write an account of measuring of moles of elements
and compounds. 5
Explain the terms theoretical yield, percentage yield and limiting reactant. 9
OR
Define the terms empirical formula, molecular formula and percentage composition. 8
Find the pH of a solution in which 4.0 x 10-5 mol dm3. 6