Annamalai University 2008-3rd Year B.Sc Chemistry " 720 ANALYTICAL " ( - VI ) ( PART - III ) ( ) 5249 - Question Paper
(a) Explain Franck - Condon principle.
(b) Define coupling constant. Explain the factors which affect the coupling constant values.
(c) Discuss any two applications of Raman spectroscopy. (5 + 7 + 8)
(a) What is solubility product ? Discuss the applications of solubility product.
(b) Explain primary and secondary standards.
(c) Write a note on precipitation from homogeneous solutions. (10 + 5 + 5)
Name of the Candidate :
5 2 4 9 B.Sc. DEGREE EXAMINATION, 2008
(APPLIED CHEMISTRY)
(THIRD YEAR)
(PART - III)
(PAPER - VI)
720. ANALYTICAL CHEMISTRY
(Including Lateral Entry )
December ] [ Time : 3 Hours
Maximum : 100 Marks
Answer ONE question from each Unit.
All questions carry equal marks.
UNIT -1
1. (a) Distinguish between :
(i) Mean and median.
(ii) Absolute and relative errors.
Turn over
(iii) Variance and standard deviation.
(iv) Indeterminate and determinate errors.
(v) Accuracy and precision.
(b) How are weights calibrated ?
(c) Write notes on significant figures.
(10 + 5 + 5)
2. (a) Explain Gaussian distribution curve.
(b) Explain correlation co-efficient and linear regression. Give the method of least square fit for a given set of data.
(c) Describe the types of errors.
(5 + 8 + 7)
3. (a) What is coulometry ? With suitable circuit
diagrams, explain the different types of coulometric analysis.
(b) Explain the basic principle of fluorimetry and its any two applications.
(c) Write a note on half - wave potential.
(8 + 7 + 5)
(OR)
4. (a) Discuss the basis of amperometric
titrations. Illustrate, taking suitable examples.
(b) Explain the instrumentation and any two applications of nephelometry.
(c) Describe the basic principle of cyclic voltammetry. (7 + 6 + 7)
5. (a) Describe the various types of electronic
transistors.
(b) Explain the effect of hydrogen bonding in IR absorption of a compound.
(c) Calculate the X values for the following
max
compounds :
8. (a) Write a note on choice of indicators.
(b) How are iron and nickel determined colorimetrically ?
(c) Write notes on :
(i) Common ion effect.
(ii) Co-precipitation. (5 + 8 + 7)
9. (a) What is chromatography ? How is it
classified ?
(b) Explain the principle and instrumentation of GC.
(c) Describe the basic principle and applications of TLC. (5 + 8 + 7)
(OR)
10. (a) Explain the carrier gas and sample
injection in GC.
(b) Distinguish between column and partition chromatography.
(c) Give a brief account of spray reagents and Rf value. (6 + 8 + 6)
8. (a) Write a note on choice of indicators.
(b) How are iron and nickel determined colorimetrically ?
(c) Write notes on :
(i) Common ion effect.
(ii) Co-precipitation. (5 + 8 + 7)
UNIT - V
9. (a) What is chromatography ? How is it
classified ?
(b) Explain the principle and instrumentation of GC.
(c) Describe the basic principle and applications of TLC. (5 + 8 + 7)
(OR)
10. (a) Explain the carrier gas and sample
injection in GC.
(b) Distinguish between column and partition chromatography.
(c) Give a brief account of spray reagents and Rf value. (6 + 8 + 6)
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