Download OU B.Pharma 2-1 Year 2013 2760 Pharmaceutical Analysis I (Chemical Analysis) Question Paper

Download OU (Osmania University) B.Pharma 2-1 (2nd Year 1st Sem) (Bachelor of Pharmacy) 2013 2760 Pharmaceutical Analysis I (Chemical Analysis) Previous Question Paper

,LIBRARY
Code No. 2760
FACULTY OF PHARMACY
B. Pharmacy II Year I  Semester (Supply) Examination, March / April 2013
Subject: Pharmaceutical Analysis  I (Chemical Analysis)
Time: 3Hours Max.Marks: 70
Note: Answer all questions. All questions carry equal marks.
1.(a) i) Define primary standard and secondary standard with examples. Write the
ideal properties of a primary standard substance. (6)
ii) Define the following terms: (4x2=8)
(A) Standard solution (B) End Point (C) Equivalence Point (D) Indicator
OR
(b) i) What is meant by calibration? How do you calibrate burette? (6)
ii) Define error. Classify and explain different types of errors. (8)
2.(a) i) Write notes on different theories of acids and bases. (8)
ii) Write short notes on: (2x3=6)
(A) Solubility product (B) Law of mass action
OR
(b) i) How do you prepare and standardize 0.1 N HCl. (4)
ii) Write a note on role of buffers in pharmacy. (6)
iii) The solubility product of silver chloride is 2.8x10
-10
mol
2
/lit
2
. Calculate its
solubility in g/L. (4)
3.(a) i) Write the methods of balancing of oxidation reduction reactions with examples. (6)
ii) Explain the steps involved in gravimetric analysis. (8)
OR
(b) i) How do you prepare and standardize 0.1 N sodiumthiosulphate solution? (4)
ii) Write a note on redoc indicators. (5)
iii) Write a note on precipitation and coagulation used in gravimetric analysis. (5)
4.(a) i) Write a note on argentometric titrations. (5)
ii) Write the principle involved in non-aqueous titrations and mention its
applications. (5)
iii) How do you prepare and standardize 0.01 M EDTA solution? (4)
OR
(b) i) Write the principle involved in complexometric titrations with suitable example.
Write a note on indicators used in complexometric titrations. (7)
ii) How do you prepare and standardize 0.1 N HClO
4
. (4)
iii) Write a note on adsorbents used in gas analysis. (3)
5.(a) i) Calculate the number of moles of sodium hydroxide in 200 ml of 1 M sodium
hydroxide solution. (4)
ii) Define and explain the terms
A) Emperical formula (B) Molecular formula
C) Theoretical yield (D) Percentage yield (4x2? ) = (10)
OR
(b) i) Describe the mole concept and avogadros number. (6)
ii) Calculate the percentagte composition of elements in Na
2
S
2
O
3
. (4)
iii) Write the mass balance equation for the following. (2x2) = (4)
1. NaOH + H
2
SO
4
? Na
2
SO
4
+ H
2
O
2. C
6
H
12
O
6
? C
2
H
5
OH + CO
2
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