B.Sc-B.Sc Chemistry 3rd Year (Dr Ram Manohar Lohia Avadh University, Faizabad-2007)
Dr.R.M.L.Avadh University Mark- 50
B.Sc. IIIrd year
Year 2007
Paper I: General Chemistry, Molecular Spectroscopy and Analytical chemistry
Note-Answer any 3 ques. from Section-A and 5 ques. from Section-B
[Section-A]
1-Outline the general methods commonly used for the determination of organic reaction
Mechanism. Briefly explain isotopic exchange and kinetic method for the determination
Of organic and Inorganic reaction mechanism.[10 marks]
2-What is microwave spectroscopy? elaborate selection rules? explain the limitations of
Microwave spectroscopy and its instrumentation. [10 marks]
3-A) What do you understand by :[5 marks]
I.Chemical shift
II.Applications of polarography
B) elaborate the differences ranging from Raman spectra and Infrared spectra? [5 marks]
4-Discuss the principle of U.V.Spectroscopy. elaborate electronic transitions? How many
kinds of them are known? organize various electronic transitions in order of decreasing
energy. [10 marks]
5-Write short notes on the subsequent :[5+5=10 marks]
I.Acid rain
II.Effect of inorganic pollutants in life
part -B
1-How many normal vibrational modes are possible for CO2 molecule? Which among them will I.R active and why? [4 marks]
2-Discuss in brief the air pollution reason by oxides of nitrogen. [4 marks]
3-Illustrate giving a suitable example how Redox titrations are carried out
potentiometrically. [4 marks]
4-How will you separate out the sugars current in the provided mixture and obtain out their Rf values by the technique of paper chromatography? [4 marks]
5-Give the applications of radio isotopes in medicine and industry. [4 marks]
6-List all the symmetry operations for the subsequent molecules and classify them into point groups: [2+2=4 marks]
I. H2O
II. NH3
7- Write short notes on any 2 of the following: [2+2+2+2=8mark]
I. Selection rules
II. Applications of nuclear energy
III. Spin-Spin splitting of N.M.R. Spectroscopy
IV. Nature of electromagnetic radiation and the spectral range.
Dr.R.M.L.Avadh University Mark- 50
B.Sc. IIIrd year Year 2008
Paper I: General Chemistry, Molecular Spectroscopy and Analytical chemistry Note-Answer any three questions from Section-A and five questions from
|
1- Outline the general methods commonly used for the determinatio |
|
reaction graphy B) What are thejdifferfcnies between Raman spectra and Infrared spectra? 5-mark |
Mechanism. Briefly discuss isotopic exchange and kinetic method f ';the determination Of organic and Inorganic reaction mechanism.10-mark 2- What is microwave spectroscopy? What are seleJfTonj ? Discuss the limitations of
Microwave spectroscopy and its ins 3- A) What do you understand by :2J5+2.5 I. Chemical shift
II. Applicatio
?......j
e of U.V.Spectroscopy. What are electronic transitions? How many are known? Arrange different electronic transitions in order of decreasing 10-mark
5- Write short notes on the following :
I. Acid rain
II. Effect of inorganic pollutants in life
1- How many normal vibrational modes are possible for CO2 molecule? Which among them will I.R active and why? 4-marks
2- Discuss in brief the air pollution cause by oxides of nitrogen. 4-mark
3- Illustrate giving a suitable example how Redox titrations are carriec potentiometrically. 4-mark
4- How will you separate out the sugars present in the givpyraXfu%and find out their Rf values by the technique of paper chromatography?" L-mafk
5- Give the applications of radio isotopes inejlcineland industry. 4-mark
|
I. H2O II. NH3 |
|
|
ction rules |
|
lowing molecules and classify them into
6- List all the symmetry operations point groups: 2+2=4 mark
7- Writeshor
on any two of the following: 2+2+2+2=8mark
I. I1'Selb 1
'""-mm'
Applications of nuclear energy
III. Spin-Spin splitting of N.M.R. Spectroscopy
IV. Nature of electromagnetic radiation and the spectral range.
|
Attachment: |
| Earning: Approval pending. |
