JNTU
JNTU B.Pharmacy II PHARMACEUTICAL ANALYSIS-I Previous Question Paper (December-2019 - R17)
Part A is compulsory. Answer all questions. Part B consists of 5 Units. Answer any one full question from each unit.
PART A
Define a primary standard substance and give few examples.
Answer
A primary standard is a highly pure, stable, and non-hygroscopic substance used to prepare standard solutions of known concentration by direct weighing. Examples include anhydrous sodium carbonate, potassium hydrogen phthalate, and oxalic acid.
Brief note on different techniques of analysis.
Answer
Analytical techniques are primarily classified into classical (chemical) methods, such as titrimetry and gravimetry, which rely on chemical reactions and mass/volume measurements, and instrumental methods, such as spectroscopy, chromatography, and electrochemistry, which measure physical properties like absorbance, potential, or current to determine analyte concentration.
List out few acid base indicators.
Answer
Sign in to view the complete answer paper.
Explain alkalimetry titration with an example.
Answer
Sign in to view the complete answer paper.
What is Mohr’s method?
Answer
Sign in to view the complete answer paper.
Classify masking and demasking agents. Give few examples.
Answer
Sign in to view the complete answer paper.
Define oxidation and reduction with an example.
Answer
Sign in to view the complete answer paper.
Elaborate the principle involved in redox titrations.
Answer
Sign in to view the complete answer paper.
Give few examples for reference and indicator electrodes.
Answer
Sign in to view the complete answer paper.
What is electrochemical method of analysis? Write the principle involved in polarography.
Answer
Sign in to view the complete answer paper.
PART B
List out the various methods of expressing the concentration.
Answer
Sign in to view the complete answer paper.
What is an error? Write the sources of errors and types of errors.
Answer
Sign in to view the complete answer paper.
Outline the preparation and standardization of 0.1N kmno4.
Answer
Sign in to view the complete answer paper.
Define the terms accuracy, precision and significant figures along with their significance.
Answer
Sign in to view the complete answer paper.
Explain briefly about the theories of acid base indicators.
Answer
Sign in to view the complete answer paper.
Brief a note on neutralization curves.
Answer
Sign in to view the complete answer paper.
Classify the various types of solvents used in NAT titrations.
Answer
Sign in to view the complete answer paper.
How do you estimate sodium benzoate. Explain.
Answer
Sign in to view the complete answer paper.
Explain modified volhard’s method. How do you estimate sodium chloride?
Answer
Sign in to view the complete answer paper.
Explain the principle and assay procedure involved in the titration of calcium gluconate.
Answer
Sign in to view the complete answer paper.
Discuss the principle and steps involved in gravimetric analysis.
Answer
Sign in to view the complete answer paper.
What is co-precipitation and post precipitation? Explain them with example.
Answer
Sign in to view the complete answer paper.
Outline the preparation and standardization of 0.1N Iodine solution.
Answer
Sign in to view the complete answer paper.
What is iodometry? Explain the principle involved in the titration of any one pharmaceutical compound.
Answer
Sign in to view the complete answer paper.
What is cerimetry? Explain the principle and assay procedure for the estimation of any one pharmaceutical compound.
Answer
Sign in to view the complete answer paper.
What are conductometric titrations? Explain with examples.
Answer
Sign in to view the complete answer paper.
Solve the llkovic equation and give the applications of polarography in pharmacy.
Answer
Sign in to view the complete answer paper.