M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Analytical Chemistry
ADVANCED ANALYTICAL TECHNIQUES
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory. Attempt any two questions from section II and section III. Answer to all questions (Section II and III) should be written in one answer book. All questions carry equal marks. Figures to right indicate full marks. Draw neat labeled diagram wherever necessary. Use of non-programmable calculator and log table is allowed.
Section I
Q.1
Answer the following:
10
Define the term supercritical fluids.
Explain in short automated devices.
Define the term magnetic nuclei.
Give two names of resins used in Ion chromatography.
Give two applications of DLS.
List the techniques used for particle size determination.
Define the term chromophore.
Define the term coupling partner.
Mention two applications of mass spectroscopy.
10) Define nitrogen rule.
Fill in the blanks:
04
Decomposition of hydrogen peroxide is an example of reaction.
Mobile phase and stationary phase in supercritical fluids are and
Photo sedimentation is monitored by the
Electrostatic process is used for controlling
Section II
Q.2
Explain the GC-MS technique of separation of mixture with suitable example.
07
Describe the principle and technique of flow injection analysis.
07
Q.3
Give structure and characteristics of resins used in ion chromatography.
07
Describe supercritical fluid chromatography with diagram.
07
Q.4
Give advantages and disadvantages of automated analysis.
07
Write note on discrete analyzer and continuous analyzer.
07
Section III
Q.5
Give applications of photo sedimentation.
05
Derive steady state approximation.
05
Give mathematical expression for first order reaction.
04
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SLR-VF-184
Q.6
What is array pattern? How does it arise in diffraction?
05
Give structure and characteristics of enzymes.
05
Explain the stopped flow method of analysis.
04
Q.7
Write a note on any Three of the following.
14
Eluents used in ion chromatography
The enzymatic determination of urea
Integral method
Hyphenated techniques used in ion chromatography