M.Sc-M.Sc Chemistry 1st Year Paper - I : GENERAL CHEMISTRY (Acharya Nagarjuna University - Center for Distance Education, Guntur, Andhra Pradesh-2013)

(DCHE 01) NR

M.Sc. (Previous) DEGREE EXAMINATION, MAY - 2013
First Year
Chemistry
Paper - I : GENERAL CHEMISTRY




Time : 03 Hours                                                                                         Maximum Marks : 80

Part - A (4 × 8 = 32)
Answer any Four questions

1) Explain the allowed transitions between rotational energy levels in Microwave spectroscopy.
2) Discuss the types of molecular spectroscopy. Giving suitable examples.
3) Explain the vibrational structure of an electronic transitions in visible spectroscopy.
4) Write about radiation sources and detectors used in different regions of Infra Red (IR)
spectroscopy.
5) Explain the method of least squares.
6) Write the techniques involved in the collection of solid samples for analysis.
7) Make a comparison between micro computer and super computer.
8) Explain DO statements with one inner loop in Fortran.

Part - B (4 × 12 = 48)
Answer All questions

9) a) i) Discuss the microwave spectra of non-rigid rotor.
ii) Explain the basic principle of NMR spectroscopy.
OR
b) i) Discuss the microwave spectra of linear molecules.
ii) Explain the vibrational spectra of diatomic molecules in Infra Red Spectroscopy.
10) a) i) Discuss the rotational fine structure of electronic vibrational transitions of UV -
visible spectroscopy.
ii) Explain the basic principle of ESR spectroscopy.
OR
b) i) By taking suitable examples, explain diatomic vibrating rotator in IR spectroscopy.
ii) Write the analytical applications of UV-visible spectroscopy.
11) a) i) Explain the sampling techniques in the collection of gaseous samples for analysis.
ii) Explain the storage of samples in the laboratory before analysis.
OR
b) i) Explain regression analysis.
ii) Write about minimization of propagation of errors in analytical experiments.
12) a) Write a flow chart and Fortran programme to calculate the rate constant of a first order
reaction.
OR
b) Write a flow chart and Fortran programme to solve Vander Waal’s equation.
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