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Submit Papers đŠDepartment of Pharmacy
Barkatullah University, Bhopal
Sessional Examination - Dec 2025
Subject :Pharmaceutical Analysis
Max Marks. :30
Subject Code: 102 T
Time 11:00-12:00 pm
Date:24/12/2025
PART A: Multiple Choice Questions (10 Ã 1 = 10 Marks)
1.
Which of the following is a primary standard used for the standardization of Sodium Thiosulfate?
a) Potassium Dichromate
b) Sodium Hydroxide
c) Hydrochloric Acid
d) Oxalic Acid
a) Potassium Dichromate
b) Sodium Hydroxide
c) Hydrochloric Acid
d) Oxalic Acid
2.
In a redox reaction, the substance that loses electrons is said to be:
a) Reduced
b) Oxidized
c) Neutralized
d) Precipitated
a) Reduced
b) Oxidized
c) Neutralized
d) Precipitated
3.
The indicator used in the titration of iodine against sodium Thiosulfate is:*
a) Phenolphthalein
b) Methyl Orange
c) Starch solution
d) Crystal Violet
a) Phenolphthalein
b) Methyl Orange
c) Starch solution
d) Crystal Violet
4.
Self-indicator behavior is specifically exhibited by:*
a) KMnO4
b) Ce(SO4)2
c) I2
d) K2Cr2O7
a) KMnO4
b) Ce(SO4)2
c) I2
d) K2Cr2O7
5.
The closeness of a measured value to the true value is called:
a) Precision
b) Sensitivity
c) Accuracy
d) Robustness
a) Precision
b) Sensitivity
c) Accuracy
d) Robustness
6.
Iodimetry is a/an ____ titration.
a) Indirect
b) Direct
c) Displacement
d) Acid-Base
a) Indirect
b) Direct
c) Displacement
d) Acid-Base
7.
What is the oxidation state of Mn in KMnO4?
a) +2
b) +4
c) +7
d) +5
a) +2
b) +4
c) +7
d) +5
8.
Which type of error is caused by the personal limitations of the analyst?
a) Instrumental Error
b) Random Error
c) Operator Error
d) Method Error
a) Instrumental Error
b) Random Error
c) Operator Error
d) Method Error
9.
In the standardization of which acid is used to provide the acidic medium?
a) HNO3
b) HCl
c) H2SO4
d) CH3COOH
a) HNO3
b) HCl
c) H2SO4
d) CH3COOH
10.
Standardization is a process used to determine the:
a) Exact concentration of a solution
b) Color of the solution
c) Solubility of a solute
d) Boiling point of a solvent
a) Exact concentration of a solution
b) Color of the solution
c) Solubility of a solute
d) Boiling point of a solvent
PART B: Short Answer Questions (Attempt any 2) (2 x 5 = 10 Marks)
1.
Define Pharmaceutical Analysis. Differentiate between Qualitative and Quantitative analysis with examples.
2.
Explain the different types of Determinate (Systematic) errors and provide two methods to minimize them.
3.
Discuss the concept of Oxidation and Reduction based on electron transfer theory with suitable chemical reactions.
PART C: Long Answer Question (Attempt any 1) (1 x 10 = 10 Marks)
1.
Define Redox Titrations. Explain in detail the principle, procedure, and chemical reactions involved in the preparation and standardization of 0.1 N Potassium Permanganate (KMnO4) solution.
2.
What are indicators in redox titrations? Explain the theory of internal indicators, external indicators, and self-indicators with at least one pharmaceutical application for each.