FACULTY OF PHARMACY
B. Pharmacy 2/4 I-Semester (Suppl) Examination, April May 2018
Subject: Pharmaceutical Analysis I (Chemical Analysis)
Time: 3 Hours Max. Marks: 70
Note: Answer All Questions. All Questions carry Equal Marks.
1. What is error? Discuss the sources of errors and suggest the remedial measures for
their control. 14
OR
Define the following.
Titration Titrant Analant Equivalence Point 4
ii) What is Primary Standard and secondary standard?
Give examples. Write the ideal requirements of Primary Standard 10
Explain the following:
Common ion effect Solubility Product 8
ii) Write a note on theories of indicators used in neutralization titration. 6
OR
Discuss the modern theories of acids and bases 8
ii) Explain the pharmaceutical importance of buffer solutions 6
Explain the principle and various steps involved in gravimetric analysis 8
ii) How do you prepare and standardize 0.1N NaoH 6 14
OR
Write the Principle and Procedure of red ox titration involving use of K2 Cr207 as
titrant. 8
ii) Explain the following:
Co- Precipitation Post Precipitation 6
Discuss the masking and demarking agents with their applications in
complexometry. 8
ii) Write a note on solvents used in non- aqueous titration. 6
OR
Explain the basic principles of complex metric analysis Write the procedure for
preparation and standardization of 0.1M EDTA 3+6
ii) Write the applications of non aqueous titrations in pharmaceutical analysis 5
Define the terms 4
Molecular formula Empirical formula
ii) Balance the following equations 6
Library
G.Pulla Reddy College of Pharmacy
HyderabadOU 1701 OU 1701
CODE NO: 1172

NaOH H2SO4 Na2 SO4 H2O
MnO4
H2O2 Mn2+ H2O O2
Na2S2O5 Hcl Nacl H2O SO2
iii) Calculate the number of moles in each of the following: 4
392 gm of Sulphuric acid.
9.0 gm of Aluminium
OR
Write mass balance expressions for a 0.0100M Solution of Hcl that is in
equilibrium with an excess of solid BaSO4 8
ii) Find the percent composition of each element in water. 6