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Seat No.: Enrolment No.
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GUJARAT TECHNOLOGICAL UNIVERSITY
B.Pharm. SEMESTER- I - EXAMINATION - WINTER -2019
Subject Code: BP102TP Date:30/12/2019
Subject Name: PHARMACEUTICAL ANALYSIS I
Time: 10:30AM TO 0:30PM Total Marks: 80
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Instructions:
- Attempt any five questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Enlist various electrodes used in potentiometry. Explain NHE in detail. 06
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(b) Define: Polarography, Limiting current, Diffusion current, Migration current, Residual current. 05
(c) Enlist redox titration in which starch act as an indicator and explain any one in detail. 05
Q.2 (a) Define oxidizing agent and reducing agent with example and explain Redox indicator in detail. 06
(b) Write a note on potentiometric titrations. 05
(c) Describe factor affecting conductance. 05
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Q.3 (a) Write a note on factors affecting purity of precipitation. 06
(b) Briefly explain the applications of conductometry. 05
(c) Explain error minimization techniques. 05
Q.4 (a) Explain different types of complexometric titration. 06
(b) Explain- how to estimate bariumsulphate by gravimetry. 05
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(c) Write a note on solvent, titrant and indicator used for weak acid & weak base in non-aqueous titration. 05
Q.5 (a) Enlist the end point detection methods in precipitation titration. Explain mohr’s method in detail. 06
(b) Explain the estimation of sodium benzoate by non-aqueous titration. 05
(c) Explain in brief various acid base theories. 05
Q.6 (a) Explain end point detection method in acid base titration. 06
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(b) Define: Normality, Molality, Mole fraction, Titrant, Stoichiometric end point. 05
(c) Explain primary and secondary standards with example. Write a note on Preparation and standardization of molar and normal solutions of hydrochloric acid and sulphuric acid. 05
Q.7 (a) Classify Errors and explain accuracy and precision in detail. 06
(b) Write a detailed note on classification of analytical method. 05
(c) Write a note on metallochromic indicator. 05
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