I Semester Examination December 2017
BACHELOR OF PHARMACY
Pharmaceutical Analysis
(BP-102T)
Time :- 3 hrs. Marks :- 80
Answer any FIVE questions :-
1. a) Why are most of the EDTA titrations performed in the presence of a buffer? (2)
b) State the requirements for complexometric titrations. (3)
c) What are metallochromic indicators? (4)
d) Discuss the assay of calcium gluconate. (7)
2. a) Give the applications of 'Redox Titrations in Titrimetric Analysis. (4)
b) Name any four oxidising agents and four reducing agents used in redox titrations. (4)
c) How does potassium permanganate act as a self indicator? (2)
d) How will you prepare and standardise 0.1 M sodium thiosulphate solution? (6)
3. a) What are non-aqueous titrations? (3)
b) Give an account of solvents used in non-aqueous titrations. (5)
c) How will you prepare and standardise 0.1 Perchloric acid? (8)
4. a) Give a brief account of various Reference Electrodes used in potentiometry. (8)
b) Discuss the applications of conductometric titrations. (8)
5. a) Define Polarography. Giving a neat and clean diagram, describe the basic apparatus used in polarography. (2 + 6 = 8)
b) Describe the factors that affect the variables in the 'Ilkovic Equation'. (8)
6. Discuss the following: (4 × 4 = 16)
a) Colour changes and pH range of any four indicators used in 'Acid-Base Titrations.
b) Various categories of reactions involved in 'Titrimetric Analysis'.
c) Characteristics of a primary standard substance and name any four primary standard substances and four secondary standard substances.
d) Types of Errors and Minimisation of Errors.
7. a) How will you determine sulphate as brium sulphate by gravimetric analysis? (8)
b) What are 'Precipitation Titrations ? Why are these of limited applications to titrimetric analysis ? Give-an-account of 'Modified Volhard's Method. (2 + 2 + 4 = 8)
P. ANALYSIS 2019 QUESTION PAPER
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