Download OU B.Pharma 2-1 Year 2015 8040S Pharmaceutical Analysis I (Chemical Analysis) Question Paper

Download OU (Osmania University) B.Pharma 2-1 (2nd Year 1st Sem) (Bachelor of Pharmacy) 2015 8040S Pharmaceutical Analysis I (Chemical Analysis) Previous Question Paper

Pharmacy
Hyderabad
OU - 1701 OU - 1701
Code No. 8040/S
FACULTY OF PHARMACY
B. Pharmacy II Year I  Semester (Suppl.) Examination, April 2015
Subject: Pharmaceutical Analysis  I (Chemical Analysis)
Time: 3 Hours Max.Marks: 70
Note: Answer all questions. All questions carry equal marks.
1 (a) i) What is a primary standard? Explain briefly giving examples. (6)
ii) Explain accuracy, precision, error and linearity with examples. (8)
OR
(b) i) What is calibration? Why calibration of glassware is necessary? How do you
calibrate a burette? (7)
ii) Explain about methods of expressing concentration. (7)
2 (a) i) Explain about different theories of acid and base. (6)
ii) Write a note on common ion effect. (4)
iii) Calculate the pH of 0.05 M solution of sodium acetate.
(The dissociation constant of acetic acid is 1.8x10
-5
). (4)
OR
(b) i) Discuss the theorys of neutralization indicators. (7)
ii) Define a buffer by giving examples. How does a buffer resist change in pH? (7)
3 (a) i) Describe the various steps involved in gravimetric analysis. (10)
ii) How do you prepare and standardize 0.1 N KMnO
4
solution. (4)
OR
(b) i) Explain Mohrs method for determination of chlorides. (7)
ii) What is oxidation  reduction potential? How it is determined in a redox
system? (7)
4 (a) i) Write the principle and procedure involved in assay of calcium gluconate. (6)
ii) Explain the principle, procedure in iodometric titrations. (8)
OR
(b) i) Explain theory and applications of non-aqueous titrations . (7)
ii) Write a note on masking and demasking agents. (7)
5 (a) i) Define the terms:
(A) Mole (B) Empirical formula (C) Molecular formula (D) Theoretical yield (6)
ii) Calculate the percentage composition of elements in K
2
Cr
2
0
7
[K=39, Cr=52,
0=16]. (8)
OR
(b) i) How many moles are present in 53 gm of sodium carbonate and
60 grams of sodium hydroxide. (6)
ii) Calculate the percentage composition of the elements in Na
2
S
2
0
3
[Na=23, S=32, 0=16]. (8)
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Pharmacy,Hyderabad
Pharmacy,Hyderabad
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